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620.00
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1PC combustible gas detector GTQ-SF6200A without sound and light.
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72.87
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Battery Adapters Male T-plug Deans to Female for Traxxas TRX Connector Plug. Bike Premium Cleats Pedal For Crank Brothers Eggbeater Candy Smar Acid Mallet. ... moreHeadset Smart Watch TWS Wireless Bluetooth Dual Headset Call Smartwatch.
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15.36
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The change in conductivity can be converted to an output signal corresponding to the gas concentration using a simple circuit. The MQ131 ozone sensor ... morehas high sensitivity to ozone, and has certain sensitivity to strong oxidizing gases such as chlorine and nitrogen dioxide, and reacts organic interference gas in the opposite direction to ozone.
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115.00
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12.74
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1 SGP30 module.
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16.51
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Dual color backlight prompt: When the detector detects combustible gas, the simulation bar increases with the increase of gas density, the buzzer sound ... moreaccelerates with the increase of concentration, and the motor vibration strengthens with the increase of concentration.
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5.08
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It has good sensitivity to the detection of hydrogen. 3, the TTL output effective signal is low level. (when the output is low, the signal lights on, ... morecan be directly connected to a single chip or a relay module).
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4.80
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For on-site detection of motor vehicle drivers and other non-drinking workers, but also for detecting other places of ethanol vapor, alcohol detection ... morerange: detection range 10 ~ 1000ppm. Sensitive material MQ-3 gas sensor is used in clean air low conductivity tin oxide (SnO2).
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2.35
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Brand Unbranded/Generic MPN Does Not Apply UPC Does Not Apply.
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6.80
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10.76
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1.35
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MQ-4 MQ4 Methane Gas Sensor Natural Coal Co Methane Detector Module For Arduino Description Size: 32mm X22mm X27mm length X width X height The main chip: ... moreLM393. ZYMQ-4 gas sensor Operating voltage: DC 5 Volt Features Indication of the signal output. Dual signal output(analog output. And TTL level output) TTL output signal is low. When low output signal light. And can be connected directly to the microcontroller) 0 ~ 5V analog output voltage. The higher the concentration, the higher the voltage. Of methane gas. The natural gas has better sensitivity. Applications Suitable for home or factory methane gas. Natural gas, and other monitoring devices. Package Included 1 x MQ-4 MQ4 Methane Gas Sensor Natural Coal Co Methane Detector Module For Arduino We only accept PayPal payment. eCheck& other pending payments via Paypal will be held until cleared. We ship to PayPal address ONLY. Please make sure your address in PayPal is matched with your shipping address before you paid. We will ship to worldwide. The approximate shipping time for different regions is as follows: US usually take around 7- 14 business days. UK. AU& NZ usually take around 12- 20 business days. Europe& Asia usually take around 15- 22 business days South America& Rest of the World usually take around 21- 30 business days. Items will be shipped within 48 hours upon payment received. If you have any questions or concerns don't hesitate to email us. Reply is usually made within 24 business hours. If you could not get our reply within 1 business day. Pls email us again in case our emails were blocked outside. Make sure my reply can reach you.
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1pc MQ-9 Combustible Gas Carbon Monoxide(CO) Sensor MQ9 Detector Module Features: 1. Using high-quality dual-panel design, with a power indicator and ... moreTTL signal output instructions; 2. With a the DO switch signal(TTL) output, and AO analog signal output; 3. TTL output valid signal is low. When the low output signal light can be connected directly to the microcontroller or relay module) 4. 0 ~ 5V analog output voltage, the higher the concentration, the higher the voltage. 5. Carbon monoxide detector, better sensitivity. 6. There are four screw holes for easy positioning; Product Dimensions: 32(L) 20(W) 22(H) 8. With a long life and reliable stability. 9. Rapid response and recovery characteristics. 10. Operating voltage: 5V. Module using the instructions: Explanation: Use Preheat 20S. The first step: to the module for 5V DC(note the positive and negative do not reverse. Otherwise easily burned chip) Step 2: If you select the output end of the high and low DO. TTL output signal can be connected directly to a microcontroller IO port or connect to the relay module, potentiometer is used to adjust the output level transition threshold. Step Three: If you choose to AO. Analog output, so you do not have control potentiometer AO feet directly connected to the input of the AD converter or microcontroller with AD can. According to our experience: In a normal environment, namely: the environment of the measured gas, setting the sensor output voltage value of the reference voltage, At this time, the voltage of the AO end about 1V, when the sensor detects that the gas to be measured when the voltage of each elevated 0.1V, the actual measured gas concentrations 200ppm(simple: 1ppm = 1mg/kg = 1mg/ L = 10-6 commonly used to indicate the gas concentration, or the concentration of the solution. on the basis of this parameter can microcontroller inside the measured analog voltage value is converted to concentration values. Note: If you are used to do a precision instrument, please buy the standard calibration
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380.00
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00780-A-0100 brand new Infrared gas detector junction box Express DHL or FedEx.
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536.00
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$
52.20
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Location: China
Model: SW-743A. The SW-733A combustible gas detector adopts the current advanced circuit technology. The sensor has the characteristics of high sensitivity, ... moregood reliability, fast response speed, high stability and simple operation.
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216.21
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HT-1805 4 In1 Gas Analyzer Detector Portable O2 CO H2S Harmful Gas Tester. Am 27.12.2022 hat der Verkäufer die folgenden Angaben hinzugefügt - This product ... morecan detect combustible oxygen, carbon monoxide, hydrogen sulfide, the concentration of the LEL, providing light, vibration, hum, triple alarm function.
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$
12.02
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$
37.27
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Detecting gas: CO carbon monoxide. Detector 1. Sound alarm works when CO gas concentration reaches the alarm level. Safety Alarm: Continuous audible alarm ... moreabove 200ppm. Sensor type: Stabilized electrochemical, specific gas (CO) sensor.
$
1.09
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$
9.11
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Condition: Neu
Location: China
CJMCU-30 SGP30. 1pcs CCS811 NTC CO2 eCO2 TVOC Air Quality Gas Sensor. 1PC SGP30 Air Quality Sensor. SGP30 Multi Pixel Gas Sensor. Using the chip: MICS-6814. ... moreChip 6814 air quality CO VOC NH3 oxynitride gas sensor.
$
33.55
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• Wide range of uses, can be applied to the detection of carbon dioxide, formaldehyde, air quality, PM2.5, PM10. PM10:1786ug/m3. Nano Sheild. 1x Air quality ... moredetector. Am 15.08.21 hat der Verkäufer die folgenden Angaben hinzugefügt.
$
13.19
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The MQ136 gas sensor has high sensitivity to hydrogen sulfide and low sensitivity to other combustible gases. It is low cost and suitable for different ... moreapplications. It has low conductivity in clean air.
$
490.10
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Condition: Gebraucht
Location: Germany
Ladekabel ist beschädigt. Ozinox 7-8-A-2 # 244149.
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1.82
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Condition: Neu
Location: China
i000000. Description Shipping and Handling Return Policy Feedback Contact us  1PC ... more5V DC MQ-2 Smoke LPG Butane Hydrogen Gas Sensor Detector Module New Description: 100% band new and high quality Quantity:1pc Color: black Size:32mmx22mmx27mm/1.26'x0.86'x1.06' Main Chip: The LM393. ZYMQ- 2 Gas Sensor Working Voltage: DC 5 V Great for home or factory gas leakage detection Use for Detecting: Combustible gas such as LPG. Butane, methane, alcohol, propane, hydrogen, smoke, etc Package includes: 1pc x Sensor Detector Module Payment:ent: 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(Detailed Seller Ratings) on eBay with a"PERFECT 5 STARS" and leave us a positive feedback. Our system will automatically do the same for you. If you have any questions, please contact us first, simply leaving negative or neutral feedback can't solve the problem. Contact us: If you have any problems. We are very glad to help you. We are handling large volume emails every
$
250.00
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Condition: Used
Location: Beaver, United States
RAE SYSTEMS PGM5620 AreaRAE Gamma STEEL Multiple Gas Sensor Detector W/ 029 3154 000 Battery Module.
$
7.20
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$
400.00
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Condition: Used
Location: Moldova
The SelectH2 selective gas detector is equipped with two gas sensors, which act like an artificial nose and only respond to hydrogen. For sale is Herth+Buss ... moreSelect H2 !
$
2052.00
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$
113.05
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Location: India
No Risk, Order Now! If you need any help or information before or after receiving the item. Our executive directly provide solution within 24 hours. Kindly ... morecheck all product images properly.
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231.22
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It is mostly used for the detector circuit of the fire alarm automatic alarm system. The insulation material of the wire does not release halogen-containing ... moregas in the case of combustion, and the smoke concentration is low.
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9.51
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2.46
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Description Specification: 100% brand new and high quality, Charge module- Linear charging. Current- 1A adjustable. Charge precision- 1.5% Input voltage- ... more4.5V-5.5V. Full charge voltage- 4.2V. Led indicator- red is charging Green is full charged. Input interface- micro USB. Work temperature- 10℃ to +85℃. Inversed polarity- NO. Size- small to 25X19X10mm. NOTE: 1. Ampere meter can only be connected to 5v input end of the module. 2. It is better that the charging current is 37% of the battery capacity. If you charge to the battery of 1000mAH. Current of 400 is enough. 3. The connection wire should not be too thick. 4. Make sure the connect point is good. 5. If the input voltage is too high. Like 5.2v, the current will be less than 1000mA, it is normal. It is protection function, auto-substract the charging current to avoid burn damage to chip. 6. NO Reveral polarity. Package Included: 5 x 5V Micro USB 1A 18650 Lithium Battery Charging Board Charger Module+Protection Recommended Products Payment We accept PayPal only. But w e only Accept your Ebay Address.Please Make sure it's 100% right. Payment must be received in 5 business days of auction closing. Please leave note for your special request(e.g. Colors or Size) in PayPal when you pay the order. Any special request cannot be accepted after 24 hours of payment. Because most of orders will be processed instantly and same day dispatched. Shipping We only accept your Ebay Address.Please Make sure it's 100% right. 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 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. We ensure dispatch the item within 1-2 business days. However. You bought the item from opposite side of the eart
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26.45
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285.56
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Location: Westerkwartier - Buitengebied Tolbert, Netherlands
DRÄGER POLYTRON 3000 P3S ARCF-0308. Used 3 months warranty. More about. Best prices. Prices excl. 285,56 USD excl. Refurbished 12 months warranty. New ... more12 months warranty.
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1.51
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Gas Detected:Carbon monoxide,Combustible gas. - Have better sensitivity to carbon monoxide detector. - TTL output valid signal is low. - High-quality, ... moredual-panel design, with power indicator and TTL signal output instructions;.
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6.58
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When powered, the heater draws about 25-35mA. You can use the EN pin to power it off (pull it high to 5V to turn off) to conserve energy. Just make sure ... moreto wait a second after turning the heater on to make sure its all heated before taking readings.
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1259.00
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76.56
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Location: East Perth, Australia
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1.99
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Car Alarm & Security. Alarm System. Motor Drive Module. USB Socket Converter. USB Converter Cable. LED Light Bulb. LED DIP Light. LED SMD Light.
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150.00
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Condition: New – Open box
Location: Milpitas, United States
562 South Milpitas Blvd. Milpitas, CA 95035. Farmon Inc.
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55.24
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Step 4: Test the ion windmill, turn off the power switch and stop the Tesla coil. Then turn on the power switch and the Tesla coil works. The arc is ejected ... morefrom the two ends of the ion windmill fittings and starts to drive the windmill to rotate.
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1.16
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10 PCS Set 5V Active Buzzer Magnetic Long Continous Beep Tone Alarm Ringer 12mm. Article-Nr.2302499. Product Details: Buzzer Condition: New Diameter: ... more12mm Length: 9.5mm Current: Frequency: 2300 +/ 500Hz Color: Black. Show as pictures PLS NOTE that due to lighting effects. Monitor's brightness/ contrast settings etc, there could be some slight differences in the color tone of the pictures and the actual item! Package Included: 10 x Buzzer, Powered By just-the-one.
$
90.00
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Condition: Used
Location: Crofton, United States
Working and Beeping GasDog NGD7201 Methane Propane. General Tools NGD7201 Precision Gas Leak Detector Gas Dog. Ideal for Industrial uses such as gas furnaces ... moreand plant maintenance. Size: 6.9 x 2.8 x 1.5. Brand General Tools Gas Type Propane, Methane Power Supply Battery-powered
$
9.57
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Location: China
1pcs CCS811 NTC CO2 eCO2 TVOC Air Quality Gas Sensor. CJMCU-30 SGP30. 1PC SGP30 Air Quality Sensor. SGP30 Multi Pixel Gas Sensor. Using the chip: MICS-6814. ... moreChip 6814 air quality CO VOC NH3 oxynitride gas sensor.
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6.54
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Location: China
$
66.07
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Location: Denver, United States
The heated diode sensor provides sensitivity to airborne refrigerants. Manufacturer: ‎Inficon. Batteries Included?. Included Components: ‎Unit^Instruction ... moreGuide. Number Of Pieces: ‎1. Style: ‎Modern.
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7.12
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In the presence of a detectable gas, the sensor's conductivity increases depending on the gas concentration in the air. A simple electrical circuit can ... moreconvert the change in conductivity to an output signal which corresponds to the gas concentration.
$
1988.00
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$
12.34
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1 SGP30 module.
$
4.71
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Condition: New
Location: Cerdanyola del Vallès, Spain
MQ-4 MQ4 Methane Gas Sensor Natural Coal Co Methane Detector Module For Arduino Description Size: 32mm X22mm X27mm length X width X height The main chip: ... moreLM393. ZYMQ-4 gas sensor Operating voltage: DC 5 Volt Features Indication of the signal output. Dual signal output(analog output. And TTL level output) TTL output signal is low. When low output signal light. And can be connected directly to the microcontroller) 0 ~ 5V analog output voltage. The higher the concentration, the higher the voltage. Of methane gas. The natural gas has better sensitivity. Applications Suitable for home or factory methane gas. Natural gas, and other monitoring devices. Package Included 1 x MQ-4 MQ4 Methane Gas Sensor Natural Coal Co Methane Detector Module For Arduino We only accept PayPal payment. eCheck& other pending payments via Paypal will be held until cleared. We ship to PayPal address ONLY. Please make sure your address in PayPal is matched with your shipping address before you paid. We will ship to worldwide. The approximate shipping time for different regions is as follows: US usually take around 7- 14 business days. UK. AU& NZ usually take around 12- 20 business days. Europe& Asia usually take around 15- 22 business days South America& Rest of the World usually take around 21- 30 business days. Items will be shipped within 48 hours upon payment received. If you have any questions or concerns don't hesitate to email us. Reply is usually made within 24 business hours. If you could not get our reply within 1 business day. Pls email us again in case our emails were blocked outside. Make sure my reply can reach you.
$
6.99
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Location: China
The gas-sensitive material used in the MQ-3 gas sensor is tin dioxide (SnO2) which has a low conductivity in clean air. Having different resistance values ... morefor different concentrations, the change in conductivity can be converted to an output signal corresponding to the concentration of that gas using a simple circuit.
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Module. Description 1. Size: 32mm X22mm X30mm length* width* height 2. The main chip: LM393. MQ135 gas sensing probe 3. Operating voltage: DC 5V Features: ... more1. Signal output indicator instructions; 2. Dual signal output(analog output. And TTL level output) 3. TTL output valid signal is low; output low signal light. Which can be accessed microcontroller IO port) 4. Analog output with increasing concentration. The higher the concentration, the higher the voltage; 5. Sulfide. Benzene Department of steam, smoke and other harmful gases with high sensitivity; 6. Has a long life and reliable stability; 7. Rapid response recovery characteristics; Applications: A hazardous gas detection apparatus for the family. The environment, suitable for ammonia, aromatic compounds, sulfur, benzene vapor, smoke and other gases harmful gas detection, gas-sensitive element test concentration range: 10 to 1000ppm Package: 1x MQ-135 Sensor Air Quality Sensor Hazardous Gas Detection Module Payment 1.We accept Paypal only. 2.Please confirm your ebay shipping address is exact after payment. 3.If your purchased is more than $50.00.Please offer your phone number with shipping address. Delivery details 1.All item 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 25 USD shipping fee, it takes 5-10 workdays for delivery.If you need other Epxress(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 day. If you do not receive our reply. Please kindly re-sent your message and we will reply to y
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75.00
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Location: Phoenix, United States
Used Riken Keiki Gas Detector Model GD-B7. -Unit was used in an IPA wafer cleaning station. Gas Detector Gas Detector. We are not responsible for assumptions.
$
47.49
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Condition: New
Location: China
O2-A2 Oxygen Sensor. 70X-V Oxygen Sensor. UK CITY 70X-V Oxygen Sensor. UK CITY 70X-V Oxygen Sensor Knowledge. The CiTiceL electrochemical gas sensor is ... morea sealed component that poses no chemical hazard under normal use.
$
9.11
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Condition: Neu
Location: China
CJMCU-30 SGP30. 1pcs CCS811 NTC CO2 eCO2 TVOC Air Quality Gas Sensor. 1PC SGP30 Air Quality Sensor. SGP30 Multi Pixel Gas Sensor. Using the chip: MICS-6814. ... moreChip 6814 air quality CO VOC NH3 oxynitride gas sensor.
$
8.32
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Condition: New
Location: China
$
205.57
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Condition: Used
Location: Philippines
We will then arrange the booking and pick-up service. Q:ARE THERE ANYTHING MORE?. A:Hmmmnnnn yes.
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94.01
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