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$
9.65
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Humidity range: 00% to 100%RH. Temperature range: -20°C~ 60°C. DC 12V 24V 16CH Temperature & Humidity Collector RS485 Modbus Rtu Board SHT30. 5PCS USB ... more3.1 Type-C Connector Female Test PCB Board Power Adapter 16P 2.54mm.
$
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Condition: New
Location: China
Use it with hydroponics, saltwater tank, freshwater tank, gardening. Switching Current: 0.5A. Can be used to sense the level of liquid in a tank. 1/2/5PCS ... moreCC1101 wireless module Long Distance Transmission Antenna 868MHZ M115.
$
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$
9.47
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(5) The wireless industrial controller; Characteristic:(1) receiver sensitivity reach -116dBm;
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$
12.95
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Condition: Neu
Location: China
HC-SR04 ultrasonic ranging module 1. Finished rangefinder 1. 5V active buzzer 1. OLED LED&RGB. The alarm distance can be set. After pressing the setting ... morebutton, you can press the plus or minus keys to modify the alarm distance, and it has the function of saving after power failure.
$
3.77
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Condition: New
Location: China
(1) receiver sensitivity reach -115dBm ;. (3) wireless security alarm;. (4) Wireless doorbell;. (6) a wireless data transmission. (1) car remote door ... moreswitch (RKE);. (4) Low power consumption, 5.0V @ 433.92MHz, 3.8-4.1mA; 5.0V @ 315MHz, 2.5-2.8mA; sustained data transfer rates to (Manchester Encoded) 2.4K of.
$
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Location: Raleigh, United States
It is simple interface and convenient because of using WT588D Voice Chip that benefited to exert its functions. Supports 2M bit ~ 32M bit capacity SPI-Flash ... more(Note: 1byte = 8bit). A lot of operations can be finished in software.
$
12.95
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Condition: Neu
Location: China
HC-SR04 ultrasonic ranging module 1. 5V active buzzer 1. Finished rangefinder 1. The alarm distance can be set. After pressing the setting button, you ... morecan press the plus or minus keys to modify the alarm distance, and it has the function of saving after power failure.
$
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Condition: New
Location: China
Item Description: 1.ultra-thin small 2.harmonic notes passed FCC/CE certification 3. strong ability to penetrate 4.ses the American SI4432 the latest ... moreversion of IC. Stable performance Frequency range: 433.92M High sensitivity up to-121dBm Maximum output power: 20dBm Data transfer rate: 0.123-256kbps FSK. GFSK and OOK modulation mode 1.8-3.6 V power supply Ultra low power off mode The digital received signal strength indicator(RSSI) Timing wake-up function Automatic antenna matching and bidirectional switch control Configurable data packet structure Before the synchronization signal detection 64 bytes RX data register(FIFO) Low power testing Temperature sensing and 8 bit analog to digital converter Operating temperature range: 20 ~ +60 C Integrated voltage regulator Frequency hopping Power on reset function Built in lens adjustment function Pin definitions: 1 CND power supply 2 GPIO0 internal module. Launch control foot 3 GPI01 internal access module to accept control foot 4 GPIO2 directly connected to the chip GIIO2 pin 5 VCC positive supply 3.3V 6 SDO 0-VDD V digital output provides a serial readback function of the internal control register 7 SDI serial data input. 0-VDD V digital input. This pin for 4-wire serial data clock function 8 SCLK serial clock input. 0-VDDV last month set of inputs. This pin provides a 4-wire serial data clock function 9 NSEL serial interface select input pin.0-VDDV digital input. This pin to 4-wire serial data bus select/ enable function, this signal is also used, said the burst read/ write mode. 10 NIRQ interrupt output pin 11 SDN Close the input pin. Input 0-VDDV digital. SDN = 0 in shutdown mode. So mode 12 GND access power ground 13 ANT 50 ohm coaxial antenna We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback. So that we can satisfactorily address your concerns. It is impossible to address issues if we do not know a
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SRX882 is a micro power strong driving force super heterodyne receiver module. It is can support our transmitter module STX882/STX888. So it is more convenient ... morefor user developing wireless products.
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Description. Mini DC-DC Converter Step Down buck Power Supply Module for Flight Control Car Specification: 100% brand new and high quality. Module Properties: ... moreNon-isolated step-down module(BUCK) Rectification: Synchronous rectification Input voltage: DC 4.75V-23V Output voltage: DC 1.0V-17V(Adjustable. Output Output current: Rated current 1.8A(3A MAX. Can not be prolonged) Conversion efficiency:96%highest) Switching Frequency: 340KHz. Output ripple:30mV(no-load) Load regulation:±0.5% Voltage regulation:±2.5% Operating Temperature: Industrial(40℃ ~ +85℃) Short circuit protection: No(Please do not short-circuit) Input Reverse protection: No(Can not be reversed) Preview. Engineered for professional eBay sellers! On Jun-09-14 at 23:02:49 PDT. Seller added the following information:
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Location: China
1 x Bluetooth4.0 HM-11 Module JDY-08 BLE Serial Transmission MODULE Comptible CC2541. Sensor mode (temperature, humidity, and many other sensor data acquisition ... moreapplications). Indoor room applications (application of iBeacon data acquisition to achieve the range of positioning).
$
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Condition: Neu
Location: China
System Power:DC 12V, DC 24V, AC 110-220V. Pressing SET in the current mode switches P0, P1. Timing range: 0-999S/0-999M/0-999H. Set up as follows P0-0 ... more(T1 timing range is seconds). Relay type: 1 way normally open relay.
$
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Condition: New
Location: China
Model:ESP8266 -12. Typ :ESP8266 Serial Wireless WIFI Module Adapter Plate. ESP8266 Adapter Plate. WiFi features. WiFi Direct support (P2P);. It is not ... more5V tolant,Connect RX or TX on 5V Arduino will destroy this module.
$
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Condition: New
Location: China
TFL (No. 1): The lowest temperature channel PWM setting, when ON state FAN1 PWM minimum is 40%, when OFF the minimum PWM of FAN1 is 20%. Support all within ... more12V 5A fans, synchronous rectifier output, high efficiency!
$
30.88
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Condition: New
Location: China
If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected. Clock chip: high-precision ... moreclock chip DS3231. The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format.
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Location: China
$
25.00
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Condition: New
Location: San Clemente, United States
(25 PIECE LOT) G781f, Global Mixed-mode Technology ±1°C Remote and Local Temperature Sensor with SMBus Serial Interface SOP-8. The remote sensor is a ... morediode-connected transistor typically a low-cost, easily mounted 2N3904 NPN type that replace conventional thermistors or thermocouples.
$
8.09
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Condition: New
Location: 福田区, China
If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected. 4 clock chip: high-precision ... moreclock chip DS3231. The clock operates in either the 24 hours or band / AM / PM indication of the 12-hour format.
$
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Condition: New
Location: China
Adapted to 2.4GHz IEEE 802.15.4 and ZigBee protocol applications, automatic network. XL2530-D01 Wireless Module. Battery monitoring and temperature sensor ... morefunction. Hardware support CSMA/CA is. Small size, light weight.
$
13.29
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Condition: New
Location: China
Specific operations are as follows Application type: 8V-86V lithium battery. In the setting mode, long press the setting key for 3 seconds to save and ... moreexit the setting mode. Load power: 8V-86V/ 30A.
$
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Condition: New
Location: China
18650 Battery Shield. Supports up to two 18650 batteries. This product does not include 18650 battery. 2X 18650 Battery Shield. 3V & 1A Output. 4X 18650 ... moreBattery Shield. 3V output port x3. 5V & 2A Output.
$
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Condition: New
Location: China
Description: It uses Doppler radar technology, with auto-sensing capabilities to control other product,High sensitivity, sensor distance, reliability, ... morewide angle sensor,Wide supply voltage range and other characteristics. Widely used in lighting situations,anti-theft alarm situations. Features: 1. microwave sensors using planar antenna and receiving echo. 2. The switch is active sensors. 3. The sensors emit a high-frequency electromagnetic waves and receives their echo. 4. The sensors detect changes within echo. 5. The sensors detect tiny movement in detect range. 6. Send signal to MCU and execution instruction. 7. Signals are likely to be detected through the door, glass and thin walls. 8. It will get best probe result if person or object when moving toward the sensor. 9. This product is.
$
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Location: China
Alarm current:
$
7.78
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Location: United States
Application: traffic signal system, teaching demonstration, indication sign, light alarm system. This is a mini-traffic light display module, high brightness, ... morevery suitable for the production of traffic light system model.
$
3.97
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Condition: New
Location: China
Using FSK / GFKS technology and LoRa (remote) spread spectrum technology. Wireless ordering machine, oil, mining, construction sites, factories and other ... moreoriginal 485/232 interface system;. FC / air wake-up function / low power / carrier sense / FEC error correction / AEC encryption.
$
16.18
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Location: Denver, United States
5 Sets 433M Transmitter + Receiver Kit High Frequency Super Regenerative Transceiver Module for Burglar Alarm. Launch frequency: 433M. Antenna greatly ... moreaffect the receiving effect of the module, the best access 1/4 wavelength antenna, generally using 50-ohm single-core wire, the length of the antenna 433M is about 17cm;.
$
5.51
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Condition: New
Location: China
Adjustable alarm clock, alarm switch. The default display is "0000", and the instant alarm is off. The product is very suitable for DIY enthusiasts and ... moreelectronic teaching, etc. DIY loose parts X1. Product Feature.
$
9.61
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Condition: New
Location: China
Receiving frequency: 315MHZ. 10 315Mhz transmitter. 10 315Mhz receiver. the 1/4 wavelength of the antenna, typically 50 ohm single conductor, the. oscillation ... moreresistor should match with the transmitter.
$
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Condition: New
Location: China
If the main power failure, the device can continue to provide accurate timing and temperature, performance is not affected. Clock chip: high-precision ... moreclock chip DS3231. Wiring instructions (with Arduino uno r3 for example).
$
116.90
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$7.00 Shipping
Condition: New
Location: Ljubljana, Slovenia
ETHM-A is a universal monitoring module which can operate autonomously, as part of an intruder alarm system or in automation systems. The module allows ... moretransmission of information via the Ethernet network.
$
149.90
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Condition: New
Location: Ljubljana, Slovenia
GPRS-A LTE is a universal monitoring module that can work autonomously or as part of an intrusion and hold-up alarm system, as well as automation systems. ... moreThe device has 8 inputs, which can be set as digital (NO, NC) or analog.
$
5.70
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Location: China
Working illumination: 10LUX. 24V:sensing range 8-12m/sensing distance 5-8m. The sensor will work automatically and the light will go out. N-blue (connect ... moreto the neutral line). Output-red (sensor output line).
$
7.01
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Condition: New
Location: China
The 8 channels can also be used as PWM outputs. The maximum drive current is 200MA for a single channel and 800MA for all channels. Direct drive inductive ... moreloads such as relays/solenoid valves/low power motors.
$
927.25
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The LCD displays the location of the leak point. Can be compatible with water or acid&alkali, oil and other liquid leakage detection cable. Power, leakage, ... morethe cable error and communication status display on the LCD screen.
$
1.70
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Location: China
$
15.99
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Condition: New
Location: United States
5 Sets 433M Transmitter + Receiver Kit High Frequency Super Regenerative Transceiver Module for Burglar Alarm. Launch frequency: 433M. Antenna greatly ... moreaffect the receiving effect of the module, the best access 1/4 wavelength antenna, generally using 50-ohm single-core wire, the length of the antenna 433M is about 17cm;.
$
5.66
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Condition: New
Location: China
DFPlayer Mini is a compact and inexpensive MP3 module can be connected directly to the speaker. The module itself perfectly integrated hardware decode ... moreMP3, WAV, WMA's. While the software supports TF card driver to support FAT16, FAT32 file system.
$
6.68
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Condition: New
Location: China
DS3231 AT24C32 IIC module. Description NOTICE:This item dose not include battery because it's not safe for shipping.Please a lot of understanding ... moreParameters: Size: 38 mm(length) 22 mm(width) 14 mm(high) Weight: 8 g. Working voltage: 3.3-5.5 V. Clock chip: high precision clock chip DS3231. Clock precision: 0-40 ℃ range. Precision 2 PPM, in error about 1 minute a year. With two calendar clock. Programmable square wave output. Real-time clock generate second. Minute, hour, week, date, month, and year when the timer, and provide the valid until 2100 leap year compensation. The chip itself Built-in temperature sensors. The accuracy is ±3 ℃. Memory chips: AT24C32(storage capacity:32 k) IIC bus interface. The highest speed 400 KHZ(when the working voltage is 5 v) Can cascade Other IIC equipment. 24 c32 address can be modified by short circuit A0/ A1/ A2, the default address is 0x57 Wiring instructions(with the example of Arduino uno r3) SCL → A5 The SDA → A4 The VCC → 5 V. GND → GND. Packing List: 2Pcs DS3231 AT24C32 IIC module(NO BATTERY) Payment 1.We accept Paypal only. 2.Please confirm your ebay shipping address is exact a fter payment. 3.If your purchased is more than £30.00. Please offer your phone number with shipping address. Delivery details 1.All items will be shipped by Airmail post within 1 business days. It takes approximately 15-25 days(USA.CA,AU,UK,DE) Other country 15-35 days. 2.Express by EMS. It must add 20 GBP shipping fee, it takes 5-10 workdays for delivery. If you need other Express(DHL,Fedex.UPS etc. please contact us to talk about shipping fee. 3.Once you purchase. Please DONOT leave negative, neutral feedback or open any case if you have not received item in 30 days, because we have mentioned the shipping time repeatedly. Contact us 新建网页 2 1.We offer retail and wholesale services. We can provide products in accordance with your requirements. If you have any questions or something to consult. Please send us ebay message. 2.All messages will be answered within 1 business d
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13.40
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Condition: New
Location: Charlotte, United States
It is simple interface and convenient because of using WT588D Voice Chip that benefited to exert its functions. Supports 2M bit ~ 32M bit capacity SPI-Flash ... more(Note: 1byte = 8bit). A lot of operations can be finished in software.
$
2.14
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Condition: New
Location: China
Maybe You Need 4WD V7 Smart Car Chassis Robot V7 Remote Control/Trace/Obstacle Avoidance Mega 2560 ATmega2560-16AU Motor Speed Test Hall Switch Sensor ... moreHall Element Switch Sensor Visit my eBay Store: ICs_Processors_Store Store Categroy. Helpful Links Store Newsletter. Add my Store to your Favorites and receive my email newsletters about new items and special promotions! General Interest. Hot Products. $16.90 $1.96 $1.59 $1.75 $3.20 $5.35 $7.90 Series 3144. Hall switch integrated circuit using hall effect principle, USES the semiconductor integrated technology manufacturing magnetic susceptibility of the circuit, it is by the voltage regulator, hall voltage generator, differential amplifier, schmidt triggers, temperature compensation and the open collector output stage circuit composed of magnetic sensitive sensor circuit, its input for the magnetic induction intensity, the output is a digital voltage signal working voltage:4.5V-24V SHIPPING. PAYMENT. RETURNS. FEEDBACK. ABOUT US. 1)All items will be shipped to your paypal address.Please update your latest address when you check out.And please make sure to provide us with correct,precise and detailed shipping address. 2)Most of the items will be shipped via Hongkong Airmail/Singapore Airmail.To US customers.We will send the package via E-packet. 3)All items will be shipped in 1-2 business days(excluding Sat.Sun& Holiday) after payment received and cleared. For the long-time holiday, we'll post the info on our store and reply you automatically via emails. 4)Tax:We will do our best to help you to clear the goods.And the tax depends on each country custom. 5)If you don't receive items over 30 business days.Please make sure to contact us before leaving any neutral or negative feedbacks.We'll try our best to help you solve the problem. 6)The product in our store is free shipping. But the shipping method is different based on your order.If your order is more than $50.We will send the items to you with tracking number for free.If your order is less than $50
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Location: China
1 x 433Mhz Superheterodyne Wireless Receiver. (1) receiver sensitivity reach -115dBm;. (3) wireless security alarm;. (4) Wireless doorbell;. (6) a wireless ... moredata transmission. (1) receiver sensitivity reach -114dBm;.
$
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Location: Ljubljana, Slovenia
It also has 4 OC type low-current outputs rated at up to 50 mA. For security of the transmitted data, an advanced AES algorithm with 192-bit key is used ... moreby the module. It can also be powered with 12 V DC.
$
0.99
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Condition: New
Location: China
USA Costomer Attention: Eevry package we provide ePacket to you.it only need 7-12 working days to you home. ePacket is standard shiping of USPS.Which ... moreis Safty and Fast.Ebay only allow us to provide ePacket to US. You can buy whatever you want,which you need only pay 1.98 dollars for it,we can send all the items to you with ePacket,If you need more,please contact us,we can change the shipping fee to 2 dollars for you. Item Description: Size:32mm*17mm*15mm(length*width*height) Main chip:LM393. Electret condenser microphone Working voltage:DC 4-6V Features: 1 signal output indication 2 single channel signal output 3 the output effective signal is low level 4 when there is sound.Outputs low level and the signal light 5 can be used for Acoustic control light. Give sound and light alarm working with Photosensitive sensor,and sound control,sound detect 6 Circuit board output switch quantity 7.Reference routines. Circuit diagram and detailed specification will be provided after perchase. We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback. So that we can satisfactorily address your concerns. It is impossible to address issues if we do not know about them! The items you ordered will be shipped out in 1 business day by Hong Kong Air Mail when your payment is clear. The arrival time is 5-20 business days to United States usually. We ensure dispatch the item within 1-2 business days. However. You bought the item from opposite side of the earth, so it needs a little longer time to deliver. Please place order only if you agree with the shipping time and all the terms below. Customs duty is obligation and liability of a citizen in your country. So buyer should be responsible for any tax and custom duty incurred. Generally, the delay or failure delivery is sometimes caused by the policy of different customs. For example, Laser Pointer is unacceptable in some countries. T
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Location: Temple, United States
Other features include three maskable interrupt sources, square wave output, and 114 bytes of general nonvolatile storage. The integral backup energy ... moresource then maintains data and operates the clock and calendar.
$
20.22
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Location: China
DS3231 AT24C32 IIC module. Description NOTICE:This item dose not include battery because it's not safe for shipping.Please a lot of understanding ... moreParameters: Size: 38 mm(length) 22 mm(width) 14 mm(high) Weight: 8 g. Working voltage: 3.3-5.5 V. Clock chip: high precision clock chip DS3231. Clock precision: 0-40 ℃ range. Precision 2 PPM, in error about 1 minute a year. With two calendar clock. Programmable square wave output. Real-time clock generate second. Minute, hour, week, date, month, and year when the timer, and provide the valid until 2100 leap year compensation. The chip itself Built-in temperature sensors. The accuracy is ±3 ℃. Memory chips: AT24C32(storage capacity:32 k) IIC bus interface. The highest speed 400 KHZ(when the working voltage is 5 v) Can cascade Other IIC equipment. 24 c32 address can be modified by short circuit A0/ A1/ A2, the default address is 0x57 Wiring instructions(with the example of Arduino uno r3) SCL → A5 The SDA → A4 The VCC → 5 V. GND → GND. Packing List: 5Pcs DS3231 AT24C32 IIC module(NO BATTERY) Payment 1.We accept Paypal only. 2.Please confirm your ebay shipping address is exact a fter payment. 3.If your purchased is more than £30.00. Please offer your phone number with shipping address. Delivery details 1.All items will be shipped by Airmail post within 1 business days. It takes approximately 15-25 days(USA.CA,AU,UK,DE) Other country 15-35 days. 2.Express by EMS. It must add 20 GBP shipping fee, it takes 5-10 workdays for delivery. If you need other Express(DHL,Fedex.UPS etc. please contact us to talk about shipping fee. 3.Once you purchase. Please DONOT leave negative, neutral feedback or open any case if you have not received item in 30 days, because we have mentioned the shipping time repeatedly. Contact us 新建网页 2 1.We offer retail and wholesale services. We can provide products in accordance with your requirements. If you have any questions or something to consult. Please send us ebay message. 2.All messages will be answered within 1 business d
$
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Location: United States
Applications: The transmitter and receiver modules for increasing the communication distance. And the frequency is 433MHz. 5 433MHz RF Wireless Transmitter ... moreand Receiver Module. The Transmitter Module (Square Shape).
$
2.98
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(STX882 is a low cost, small size, ultra-high-power, low harmonic of the's ASK transmitter module. STX882 Features STX882 RF Transmitting Module x 1. ... more1) Frequency Range: 315MHz. 2) ASK modulation mode.
$
3.72
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Condition: New
Location: China
(5) The wireless industrial controller; Characteristic:(1) receiver sensitivity reach -116dBm;
$
9.99
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Built-in short circuit protection, open circuit protection, reverse connection protection, overload protection. B2=Lithium-ion battery (lithium battery) ... more3 strings of 3.7V = 11.1V. Supported battery types.
$
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Location: China
Description Descriptions: 1.Signal output indication. 2.Single channel signal output. 3.Circuit board output switch quantity. 4.The output effective signal ... moreis low level. 5.Can detect the intensity of the sound environment. 6.With the retaining bolt hole. Convenient installation. 7.When there is sound. Outputs low level and the signal light. 8.Can be used for Acoustic control light. Give sound and light alarm working with Photosensitive sensor,and sound control,sound detect Note: This sensor only recognizes the availability of sound(vibration principle) can not identify the size of the sound or the specific frequencies of sound. Specifications: Weight: 3g Working voltage:DC 3.3-5V Dimension: Approx.4.5(L) x 1.7(H) x 0.9(W)cm Main chip: LM393. Electret condenser microphone Package include 1 x Sound Detection Sensor Module Shipping Policy, Payment Method, Returns Policy, 1. We are not responsible for undeliverable address. We reserve the right to charge the shipping fee again for returned items due to wrong address. 2. Items are generally shipped out the 1-2 business day after your payment has been cleared(Sat. Sun. excluded. 3. Local pick up is not available. 1. All payments must be prepaid. 2. We only accept payment via Paypal. Please kindly check if you can do the payment via PayPal before placing an order. 1. We offer 14 days money back guarantee return policy. 2. Our warranty does not extended to any products that are physically damaged or that are not under normal operating conditions as a result of misuse or improper installation on the buyer/user's part. 3. For all returned products. Buyers MUST contact us for the returning address. 4. In all cases. Buyers pay shipping fees at their own cost to return products for exchange or refund. We will be responsible for the postage of replacements. Refund will be made upon receipt of the returned item. Hot Store Categories Newsletter. Sign up newsletter now.To Payment info
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2 x Buzzer Alarm. Dual USB External PC SSD Hard Disk Drive Adapter USB To SATA 2.5" Converter. Brightness: greater than or equal 75mcd. High brightness: ... moregreater than or equal 150mcd. Mini USB2.0 EDR Wireless Bluetooth Dongle Adapter For Laptop PC Win Xp Win7 8.
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Condition: New
Location: China
USA Costomer Attention: Eevry package we provide ePacket to you.it only need 7-12 working days to you home. ePacket is standard shiping of USPS.Which ... moreis Safty and Fast.Ebay only allow us to provide ePacket to US. You can buy whatever you want,which you need only pay 1.98 dollars for it,we can send all the items to you with ePacket,If you need more,please contact us,we can change the shipping fee to 2 dollars for you. Item Description: This module is improved. The module itself has temperature compensation, the accuracy of the highest module now clean out treasure, absolute stable, economical, practical. 20* 45 mm module circuit 15 mm thick. This module 1. Stable performance, measure distance accurate: Can SRF05 and abroad. Such as SRF02 ultrasonic ranging module comparable. Module high precision, blind area(2 cm) super close, stable is the product range to the market success of powerful according to! 2. Main technical parameters: 1) the use of voltage: DC5V 2) the static current: less than 2 mA 3) level output: high 5 V 4) level output: bottom 0 V 5) induction Angle: no more than 15 degrees 6) detection range: 2 cm-450 cm 7) high precision: up to 3 mm. 3. The wiring way: VCC. Trig(control terminals) echo(receiver) GND. 4. Method of use: A control mouth hair a 10 US above the high level. Can wait for high level output receiver mouth. A has an output can open timer time, when the mouth into a low power can be read at ordinary times timer values, where you for the ranging time, can calculate the distance. This will continue the cycle, can reach you move measurement value ~ ~. 5. Module working principle: 1) the IO trigger ranging. To at least 10 us high level signal; 2) module automatically send eight 40 KHZ of square wave. Automatic testing if it has any signals return; 3) a signal to return to. Through the IO output top level, the duration of the high level is from the launch ultrasonic returned to time. Test distance =(high level time* sound velocity(340 M/S) 2; US-100 ultrasonic ranging modul
$
1.11
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Condition: New
Location: China
$
6.07
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$2.99 Shipping
Condition: New
Location: China
FSK/GFKS technology, LoRa (remote) spread spectrum technology. Original 485/232 interface system for wireless ordering machines, oil fields, mining areas, ... moreconstruction sites, factories, etc. Ultra long-distance transmission can be as far as 5KM.
$
2.45
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Location: China
$
7.16
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Location: China
Using FSK / GFKS technology and LoRa (remote) spread spectrum technology. Wireless ordering machine, oil, mining, construction sites, factories and other ... moreoriginal 485/232 interface system;. FC / air wake-up function / low power / carrier sense / FEC error correction / AEC encryption.
$
99.99
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$3.40 Shipping
Condition: New
Location: China
[5PCS] Mini TF Card U Disk MP3 Player DFPlayer Audio Voice Module For Arduino. 5 U Disk TF Card MP3 Player Mini DFPlayer Audio Voice Module For Arduino. ... moreSupport up to 32G microSD card and 32G U disk, 64M byte NOR FLASH.
$
16.91
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Condition: New
Location: United States
DFPlayer Mini is a compact and inexpensive MP3 module can be connected directly to the speaker. The module itself perfectly integrated hardware decode ... moreMP3, WAV, WMA's. While the software supports TF card driver to support FAT16, FAT32 file system.
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