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$
16.79
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Condition: New
Location: China
Onboard ESP32 module IO0 programmable button and reset button. 1x AC/DC Relay Module. 1 programmable LED and relay indicator onboard. Onboard mature and ... morestable ESP32-WROOM-32E module, large-capacity 4MByteFlash.
$
38.25
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Condition: New
Location: China
Hitex HiTOP Debugger;. Altium/TASKING Compiler. 1x emulator. USB2.0 high-speed communication interface, connected to the computer through the USB interface. ... more3 status lights, red - power light, blue-running light.
$
3.32
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$2.99 Shipping
Condition: New
Location: China
Bluetooth-compatible version: BLE 4.2 (compatible with BLE4.0, BLE4.1). Working frequency band: 2.4G. Communication interface: UART or IIC. Module size: ... more19.6mm 14.94 2.6. Working temperature: -40℃ - 80℃.
$
50.00
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$10.43 Shipping
Condition: New
Location: New Hartford, United States
The keying circuit uses a MOSFET to ground to key most solid state transmitters. It's low power consumption is ideal for QRP operation. Boards may vary ... moreslightly from picture but will function identically.
$
18.00
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Condition: Used
Location: Lorain, United States
Made in the USA. Used in good condition.
$
18.70
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Condition: Neu
Location: China
2: The integration of charging and discharging eliminates the tedious operation of disassembling and assembling the battery to replace the charging and ... moredischarging of the device. 1 18650 battery capacity internal resistance detector automatic charging and discharging module(battery not included).
$
18.00
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$0.99 Shipping
Condition: New
Location: China
This edition is suitable for ADAU1401/1701/1702 learning and product use. ADAU1401/ADAU1701 DSPmini Learning Board Update To ADAU1401 Single Chip Sy. ... moreTwo ADCs and four DACs provide 98.5 dB of analog input to analog output dynamic range.
$
1.80
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Condition: New
Location: China
Hope you could understand. Size: 1.8 x 1.3 cm.
$
21.59
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Condition: New
Location: China
Integrated CP2102 USB to serial chip for easy program download and debug information printing. USB to serial chip: CP2102. SX1262 LoRa node chip. Interface: ... moreType-C USB; 2 1.25 lithium battery interface; LoRa; ANT(IPEX1.0); 2 18 2.54 Header Pin.
$
1833.95
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Condition: New
Location: MH-Speldorf, Germany
Do you need a different steel quality or dimension? Please write to us. Our sales team makes an offer from stock program or delivery program :) Hafnium ... moreWire 99.0% consists of hafnium with purity up to 99.0%. The metal is basically used in alloys with metals (niobium, tantalum, molybdenum and tungsten) (so-called super alloys). It can be worked well by rolling, forging, drawing and hammering. Hafnium wire is available in the Evek GmbH online shop on request. Please contact us to get more information about our products. Hafnium Wire 99.0% has excellent corrosion and acid resistance. In addition, it is not attacked by alkalis. Due to its difficult extraction and high price, hafnium is only used in small quantities. Evek GmbH offers hafnium wire at a good price. Buy Hafnium Wire from Evek GmbH.
$
10.86
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Condition: New
Location: China
The working frequency is. 405-2.485GHz, and the wireless transmission rate reaches 250Kbaud;Cooperate with firmware to realize the function of protocol ... moreanalyzer. The product is small and sturdy, ultra-narrow design, with thickness of 1.6MM, avoid conflict with other USB devices.
$
3.18
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Condition: New
Location: New York, United States
Our C-clamp are suitable for base swing arm desk lamp, magnifying lamp desk lamp, microphone holder, phone mount, Ipad mount, lamp cantilever bracket ... moreand other audio accessories. This sturdy clamp can be easily moved or re-adjusted to the desired position.
$
4.17
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Condition: New
Location: New York, United States
Type:PLCC32 TO DIP32 Programming Adapter. Then plug the adapter into the program. In the lock seat on the device! DIP Pin Header Pitch:2.54mm.
$
30.00
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Condition: New
Location: Monroe Township, United States
High Power : It uses high-end semiconductor cooling maximum power of 288w, effectively improving cooling efficiency. Maximum Power: 288W (15.4V). This ... moresemiconductor refrigeration machine uses high-end semiconductor heat dissipation technology and high-quality refrigeration tablets to provide you with an efficient and powerful cooling effect.
$
11.24
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Condition: New
Location: United States
A 0.96" OLED display is on the board. It is very easy for beginners. You can program it like Arduino. Compatible with NodeMCU(Lua for ESP8266). All ESP8266 ... morepins broken out. Micro USB connection. Input Power 4.75V ~ 12V.
$
10.23
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Condition: New
Location: China
A 0.96" OLED display is on the board. It is very easy for beginners. You can program it like Arduino. ESP32 0.96" OLED (WIFI & Bluetooth). The entire ... moresolution is the smallest PCB area. 1PC ESP-WROOM-32 ESP32 0.96" OLED WIFI-BT Dual-mode 2.4GHz For Wemos D1 AP STA.
$
12.72
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Condition: New
Location: China
Load relay 20A. P-01: The relay is disconnected after power-on or triggering, and the relay is closed after A delay. P-13: The power-on relay is switched ... moreon, the relay is disconnected after triggering, and the relay is switched on after A delay.
$
1516.56
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$34.75 Shipping
Condition: New
Location: Leopolis, United States
If a problem does arise, we do our best to rectify the situation.
$
2.99
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Condition: New
Location: China
1pcs J-Link OB ARM Debugger Programmer Downloader replace v8 SWD Jlink ARM-OB is ARM series CPU onboard Jlink debugging scenarios. In addition to not ... moretest voltage is outside the target board. And the official version of the same function( speed limit to 4MHz) Features: ◆ Support for IAR EWARM and KEIL MDK; ◆ only support SWD debugging; ◆ stable. No missing firmware phenomenon; ◆ with 500ma resettable fuse to protect the computer usb port ◆ dual power output 5v and 3.3v 6: ◆ usb using the same base and handset. Easy to use desktop users to develop, while the usb cable user selectable ◆ compact. Only U-disk size, easy to carry 8: ◆ whole set of transparent thermoplastic pipe. To avoid problems in the course of a short circuit devices Note: If the chip does not support swd do not buy! package: 1pc jlink ob 1pc Test line 1pc USB cable SHIPPING, All the items will be dispatched within 1 business day by Hong Kong Airmail after the payment is clear. Items will arrive in 7-25 business days. The arrival time depends on some factors and different areas: Please choose some local sellers. If you cannot wait patiently in the shipping time we declared. Once you purchase. Please DON’T leave negative or neutral feedback if you haven’t received item in 30 days. Because we have mentioned the shipping time repeatedly. Customs duty is obligation and liability of a citizen in your country. So buyer should be responsible for any tax and custom duty incurred. For example, Laser Pointer is unacceptable in some countries. Therefore, please double check your local customs policy carefully before purchase. Or, we will NOT be responsible for any failure delivery related destination customs issue. PAYMENT, We accept PayPal only. We only ship item to your PayPal verified address. Payment must be received within 3 Days from the date of purchase. Please leave note in PayPal when making the payment if you have any special request(colors/size) Orders will be processed instantly and dispatched in same day normally. So we do
$
16.99
3d 20h 58m 27s
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$22.99 Now
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Condition: New
Location: Sun City West, United States
35mm DIN Rail Mount (8) Barrier Terminal Strip With Plexiglas Cover. G-10 panel measures 4-1/4" x 3". Free USPS First Class Mail to US 50-States. All ... moreothers use Ebay's Global Shipping Program.
$
41.83
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Condition: New
Location: China
Hitex HiTOP Debugger;. Altium/TASKING Compiler. 1x emulator. USB2.0 high-speed communication interface, connected to the computer through the USB interface. ... moreInfineon DAVE.
$
12.91
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$3.70 Shipping
Condition: Neu
Location: China
HC-SR04 ultrasonic ranging module 1. Finished rangefinder 1. 5V active buzzer 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.
$
3.85
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Condition: New
Location: Dayton, United States
Each is labeled B250K. The manufacturers part number is B250K. These do not include hardware for threaded mount. All electrical and electronic components ... moreare visually inspected but are otherwise untested unless specifically noted above.
$
3.40
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$19.90 Shipping
Condition: New – Open box
Location: Νεα Καλλικρατεια, Greece
We try very hard to provide accurate product pictures and titles, in most cases, we take our own pictures unless they are provided to us by the manufacturer.
$
4.66
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Condition: New
Location: China
Description: Support for the Arduino IDE 1.0+(OSX/Win/Linux) Power via USB or External Source- 5v or 7-35v(automatic selection) On-board 500ma 5V Regulator, ... moreBuilt-in USB(and serial debugging) 6 I/O Pins(2 are used for USB only if your program actively communicates over USB. Otherwise you can use all 6 even if you are programming via USB) 8k Flash Memory(about 6k after bootloader) I2C and SPI(vis USI) PWM on 3 pins(more possible with Software PWM) ADC on 4 pins, Power LED and Test/Status LED(on Pin0) Package Included: 1 x Digispark Kickstarter ATTINY85 Arduino General Micro USB Development Board Dear buyers: Welcome to our store.Thanks! We try our best to provide you high quality and good service.Your satisfy is our aim. If you are satisfy with us.Pleae leave five star positive feeback,and welcome to our store again,we will supply the good items and service all the time. If you are not 100% satisfied.Please don't leave a neutral or negative but contact us First, we will do our best to solve for you. Best Regards Shipping: We Ship to Worldwide. But Italy, Nigeria, Brazil will take long delivery time. Before buying. Please make sure your address is correct. Or not, please correct it before payment. Ship to worldwide from Hong Kong within 12-24 hours after payment completed received. And will give you the tracking number asap. sometimes we will send it by flat post air mail if just one low price order.Hope you understand. we advise shipping by DHL or EMS.And we have gave a discount for you,you can received it in 4-9 business days. it takes about 15-30days usually if shipping by CHina/Hong Kong post air mail. Warranty and return: 12-months Warranty for defective items(excluding items damaged and/or misused after receipt) Refund or replacement request is available only the requests within 1 week after parcel received& returning the item as the same condition as received. Please contact us to request a return authorization. Your name. Auction number, and reason for return should be included in
$
5.48
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Condition: New
Location: China
i000000. Description Shipping and Handling Return Policy Feedback Contact us CY7C68013A-56 EZ-USB FX2LP USB2.0 Develope Board Module Logic Analyzer EEPROM ... moreDescription: 100% band new and high quality CY7C68013A-56 chip: low-power version of the enhanced 51-core. 16KB program data areas, clocked at 48Mhz, 480Mbps high-speed transmission protocol standards, in line with USB2.0 specification, backward compatible with USB1.1 Firmware. EEPROM: complete the program in-system programming directly with a USB cable to download the firmware, on-board to provide 16K(24LC128) a large program memory(EEPROM) used as storage VID/ PID and the USB firmware, the program space to meet the CY7C68013A need All GPIO After 2.54mm standard pin lead out. The great convenience learners expand their own design With corresponding firmware can be achieved through the core board logic analyzer function Provide the PDF principle diagram and related source Package includes: CY7C68013A Develope Board Module x 1 Payment: We accept payment through Paypal ONLY. If you do not have Paypal account. Please registered with(http:www.paypal.com) Payment must be received within 5 days after auctions ended. Please do not bid if you are not intending to buy. Unpaid dispute will be filed to ebay for the non payable bidders. Shipping and handling: Return Policy: We could offer refund. And refund request is available only requests within a week after parcel received& returning the item as the same condition as received. We offer 100% refund if the item is broken before arrival. All you need to do is sending us the clear pictures to show it is broken. Defective situation must be noticed within 7 days after delivery. Please do not leave negative feedback to me. If you are not satisfied with the item, please feel free to contact us. We will response in 24 hours to resolve the problems even offer full refund to you. Feedback: Dear buyers. We appreciate your business, if you are satisfied with our service, please rate the details of the transaction(Detaile
$
4.74
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Condition: New
Location: China
ESP32 is already integrated antenna and RF balun, power amplifier, low-noise amplifiers, filters. Support image WiFi upload. The entire solution takes ... moreup the least amount of printed circuit board area.
$
102.06
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Condition: New
Location: China
Slow response, large hysteresis REACTION Upper and lower limits. Conventional M20 1.5. SHANGXIAX range cannot be set for upper and lower limits. Simple ... morepressure setting. Upper and lower limits can be set arbitrarily.
$
26.50
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Condition: New
Location: China
What is this?A UHF Male to UHF Male Coaxial Cable is a type of cable that features UHF (Ultra High Frequency) connectors on both ends, with both connectors ... morebeing male. The UHF Male to UHF Male Coaxial Cable is typically used to connect devices such as radios, antennas, SWR meter, monitors, or any equipment that uses UHF connections. It allows for the transmission of signals within the UHF frequency range with minimal loss or interference. What will I get?The RG8 Coaxial Cable, we provide here, is in the size of:Length: 1.8M/6ftDiameter: 10mm/0.4 inchImpedance: 50 OhmMaterial: Copper、PVCColor: BlackIn the package of: 2 x UHF Male to UHF Male Coaxial CableAre there any advantages of the product?This cable is known for its durability and reliable performance. Made of PVC, it ensures long-lasting use and resistance to wear and tear.
$
28.50
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Condition: New
Location: Monroe Township, United States
4Chip Semiconductor Refrigeration Kit Thermoelectric Peltier Water Cooling new. This semiconductor refrigeration machine uses high-end semiconductor heat ... moredissipation technology and high-quality refrigeration tablets to provide you with an efficient and powerful cooling effect.
$
5.16
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$3.50 Shipping
Condition: New
Location: China
ESP8266 NodeMCU board. Pair with the popular DHT11 temperature and humidity sensor. DHT11 data pin: D2. Product Introduction. The board is an excellent ... morechoice for various Internet of Things (loT) projects.
$
27.26
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Condition: New
Location: China
This is a 76.0MHz-108.0MHz wireless FM radio receiver DIY kit. LCD Display FM Radio Receiver DIY Kit. If C1 is displayed on the LCD, the campus radio ... morefrequency band is enabled. The LCD display C0 indicates that the campus radio frequency band is disabled.
$
9.18
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Condition: New
Location: Charlotte, United States
Description: Support for the Arduino IDE 1.0+(OSX/Win/Linux) Power via USB or External Source- 5v or 7-35v(automatic selection) On-board 500ma 5V Regulator, ... moreBuilt-in USB(and serial debugging) 6 I/O Pins(2 are used for USB only if your program actively communicates over USB. Otherwise you can use all 6 even if you are programming via USB) 8k Flash Memory(about 6k after bootloader) I2C and SPI(vis USI) PWM on 3 pins(more possible with Software PWM) ADC on 4 pins, Power LED and Test/Status LED(on Pin0) Package Included: 1 x Digispark Kickstarter ATTINY85 Arduino General Micro USB Development Board Dear buyers: Welcome to our store.Thanks! We try our best to provide you high quality and good service.Your satisfy is our aim. If you are satisfy with us.Pleae leave five star positive feeback,and welcome to our store again,we will supply the good items and service all the time. If you are not 100% satisfied.Please don't leave a neutral or negative but contact us First, we will do our best to solve for you. Best Regards Shipping: We Ship to Worldwide. But Italy, Nigeria, Brazil will take long delivery time. Before buying. Please make sure your address is correct. Or not, please correct it before payment. Ship to worldwide from Hong Kong within 12-24 hours after payment completed received. And will give you the tracking number asap. sometimes we will send it by flat post air mail if just one low price order.Hope you understand. we advise shipping by DHL or EMS.And we have gave a discount for you,you can received it in 4-9 business days. it takes about 15-30days usually if shipping by CHina/Hong Kong post air mail. Warranty and return: 12-months Warranty for defective items(excluding items damaged and/or misused after receipt) Refund or replacement request is available only the requests within 1 week after parcel received& returning the item as the same condition as received. Please contact us to request a return authorization. Your name. Auction number, and reason for return should be included in
$
90.44
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$3.59 Shipping
Condition: Used
Location: China
Model: BLF188XR. Type: LDMOS Transistor High Frequency Microwave Tube. Excellent ruggedness. High efficiency. NEW, ORIGINAL parts. West Asia/Middle East. ... moreAustralia/New Zealand. United Kingdom.
$
1.89
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$3.20 Shipping
Condition: New
Location: China
1 x 5W Mini MP3 Player Voice Module IO Trigger USB Download Flash Audio Module. "Key combination playback" refers to the restoration of the original high ... morelevel after io0-io7 output the corresponding level, similar to the key trigger once.
$
12.79
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$3.00 Shipping
Condition: New
Location: China
PDWN: ADS1256 Sync / Turn off the power input (Active low level). 1 x ADS1256 24 Bit 8 Channel ADC AD Module. single-ended input and differential input. ... moreSCLK, DIN, DOUT, CS: SPI communication Interface.
$
50.00
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$32.87 Shipping
Condition: New – Open box
Location: Lorain, United States
$
7.99
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Condition: New
Location: China
The module body for the ESP-WROOM-32 module, peripheral USB serial chip CH9102 extended micro-USB interface, can be directly debugged through the USB-connected ... morecomputer, fast and stable data transmission, to ensure the normal communication of the serial port.
$
59.84
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$2.99 Shipping
Condition: New
Location: China
(Output power: 35W natural cooling, heat dissipation to enhance 50W. With heat sink, send module support isolation column. When the input current is relatively ... morelarge Do not ignore the partial pressure on the input wire).
$
13.60
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Condition: New
Location: United States
1.On-board USB to serial port. Download Interface:TYPE-C USB. 2.On-board TYPE-C interface and full-color RGB LEDs. HOBBYWING Program Card LCD/LED/OTA ... moreBrushless ESC Programming Box Multifunction. Professional Waterproof Case Box Special Sealed for RC Car Boat Model Receiver.
$
1.41
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$3.73 Shipping
Condition: Neu
Location: China
Model: B12. To judge the zero fire wire, distinguish and identify the zero fire wire, insert the electric pen bit into the jack, and the green light is ... morethe fire wire. LED lamp beads: high-brightness double-color lamp beads.
$
3.08
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$3.50 Shipping
Condition: New
Location: China
High power, high efficiency, better performance than XL6009 / LM2577 program. Iron silico aluminum magnetic ring inductance, high efficiency. Constant ... morecurrent mode without electric whistle. 3A Without display.
$
2.47
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$2.99 Shipping
Condition: New
Location: China
The ICD2, KIT2, KIT3 crystal head or 6Pin Block programming connection for programming the programming operation. PIC16/18XX 40PIN Series devices (except ... more16F59). The PIC 8PIN/14PIN/20PIN family of devices (except 10FXX).
$
10.00
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$19.39 Shipping
Condition: Used
Location: Lorain, United States
Input: 120 VAC 50/60 Hz 0.5A;. Unable to test - working condition unknown. 6 feet on each side.
$
3.97
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$3.00 Shipping
Condition: New
Location: China
Wemos ESP32 Battery Shield Module. The entire solution takes up the least amount of printed circuit board area. This tiny board could solve such problems. ... moreA LG 3000mAH 18650 battery (NOT include) could make ESP32 run 17 hours or more.
$
12.99
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Condition: New
Location: United States
Built-in WiFi, Bluetooth dual network connection, in-car Wi-Fi, Bluetooth dedicated 2.4GHz PCB antenna. The ESP32-C3FN4 is a 32-bit microprocessor based ... moreon the RISC-V architecture. It is a low-power, highly integrated MCU system-on-chip (SOC) with integrated 2.4 GHz Wi-Fi and low-power Bluetooth® LE dual-mode wireless communication.
$
6500.00
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$190.00 Shipping
Condition: New – Open box
Location: Romania
Select from more than 20 different DC power modules, ranging in capability from basic to high precision, and in power from 20 - 300 W. The Keysight N6781A ... moremodules The aesthetic condition can be seen in the pictures.
$
28.50
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Condition: New
Location: Chino, United States
4Chip Semiconductor Refrigeration Kit Thermoelectric Peltier Water Cooling new Description A piece of excellent refrigeration equipment can not be separated ... morefrom the help of a quality cooler. This semiconductor refrigeration machine uses high-end semiconductor heat dissipation technology and high-quality refrigeration tablets to provide you with an efficient and powerful cooling effect. It is suitable for 5.28GAL small space cooling, learning the theory of semiconductor cooling, researching to develop a cooling equipment planning program, etc. Key Features High Durability: It is made of high-quality aluminum and plastic, with strong resistance to low temperature, durability and long service life. High Power: It uses high-end semiconductor cooling maximum power of.
$
28.50
Buy It Now
Free Shipping
Condition: New
Location: Chino, United States
4Chip Semiconductor Refrigeration Kit Thermoelectric Peltier Water Cooling new Description A piece of excellent refrigeration equipment can not be separated ... morefrom the help of a quality cooler. This semiconductor refrigeration machine uses high-end semiconductor heat dissipation technology and high-quality refrigeration tablets to provide you with an efficient and powerful cooling effect. It is suitable for 5.28GAL small space cooling, learning the theory of semiconductor cooling, researching to develop a cooling equipment planning program, etc. Key Features High Durability: It is made of high-quality aluminum and plastic, with strong resistance to low temperature, durability and long service life. High Power: It uses high-end semiconductor cooling maximum power of.
$
28.50
Buy It Now
Free Shipping
Condition: New
Location: Monroe Township, United States
High Power : It uses high-end semiconductor cooling maximum power of 288w, effectively improving cooling efficiency. Maximum Power: 288W (15.4V). 4Chip ... moreSemiconductor Refrigeration Kit Thermoelectric Peltier Water Cooling new.
$
28.50
Buy It Now
Free Shipping
Condition: New
Location: Monroe Township, United States
High Power : It uses high-end semiconductor cooling maximum power of 288w, effectively improving cooling efficiency. Maximum Power: 288W (15.4V). This ... moresemiconductor refrigeration machine uses high-end semiconductor heat dissipation technology and high-quality refrigeration tablets to provide you with an efficient and powerful cooling effect.
$
43.79
Buy It Now
Free Shipping
Condition: New
Location: China
Hitex HiTOP Debugger;. Altium/TASKING Compiler. 1x Emulator. USB2.0 high-speed communication interface, connected to the computer through the USB interface.
$
3.58
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Free Shipping
Condition: New
Location: China
$
4.50
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Condition: Brand New
Location: China
Product Introduction Interface Resources: 2x SPI, 3x USART, 2x I2C, 1x CAN, 37x I / O ports. 4, MCU pin interface: leads all I / O port pins, easy to ... moreconnect with peripherals. 3, with SWD simulation debug download interface, simple and convenient, debugging speed.
$
6.38
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$3.19 Shipping
Condition: Neu
Location: China
Support low-temperature shutdown of fans (PWM shutdown or extended relay shutdown of fan power). PWM frequency: 20KHz or 2.5KHz (± 2%). PWM signal amplitude: ... more10.5V (no-load). In the power-off state, hold down the "OK" button to power on and enter the function settings.
$
5.99
Buy It Now
$2.99 Shipping
Condition: New
Location: China
ESP8266 NodeMCU board. Pair with the popular DHT11 temperature and humidity sensor. DHT11 data pin: D2. The board is an excellent choice for various Internet ... moreof Things (loT) projects. Clock speed: 80 MHZ802.11 b/g/n, integrated TCP/IP protocol, 2.4 GHz Wi-Fi with WPA/WPA2 support.
$
11.58
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$2.53 Shipping
Condition: Neu
Location: China
Setting (start humidity): Press and hold △ key to start the humidity value flashing. Set the humidity value by △ ▽ key. Set [Stop Humidity]: Press and ... morehold △ key to stop the humidity value flashing, and set the humidity to stop by △ ▽ key value.
$
6.64
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$2.99 Shipping
Condition: New
Location: China
ESP8266 NodeMCU board. Pair with the popular DHT11 temperature and humidity sensor. DHT11 data pin: D2. The board is an excellent choice for various Internet ... moreof Things (loT) projects. DHT-11 Sensor.
$
87.28
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$3.18 Shipping
Condition: Neu
Location: China
Model: 2C23T. Oscilloscope Specifications. 2.Dual-channel 2X10MHz bandwidth, isolated channels are independent of each other to avoid interference between ... morethem, more accurate signal detection. Analog bandwidth: 10M (dual-channel independent 10M).
$
12.29
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Condition: New
Location: Jamaica, United States
Output power: 35W natural cooling, heat dissipation to enhance 50W. With heat sink, send module support isolation column. Short circuit protection: yes. ... moreInput anti-reverse protection, reverse connection will not burn;.
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Dedicated Speech Intelligibility Meter with TalkBox DSP2B / DSP2BP
DSP2B Dedicated Speech Intelligibility Meter Measures Sound Pressure Level and Speech Intellegibility Index in CIS or STI formats using the OPTionSTICis tm Software. DSP2BP includes OPTion PI Privacy Index. Signal Generator- An Integral Part of The Speech Analysis System- Used with either DSP2B/BP. DSP30B/BP or DSPCIB/BP- Applies Specialized Test Tones To A Voice Message System or selected environment.