SainSmart MQ137 Semiconductor Sensor For Sale

SainSmart MQ137 Semiconductor Sensor


This item has been shown 25 times.

Buy Now

SainSmart MQ137 Semiconductor Sensor:
$39

Specifications: * Model No.: MQ137 * Sensor Type: Semiconductor * Standard Encapsulation: Bakelite (Black Bakelite) * Detection Gas: Ammonia * Concentration: 5-500ppm (Ammonia) CIRCUIT * Loop Voltage(Vc): ≤24V DC * Heater Voltage(VH): 5.0V±0.2V AC or DC * Load Resistance(RL): Adjustable CHARACTER * Heater Resistance(RH): 31Ω±3Ω(Room Tem.) * Heater consumption(PH): ≤900mW * Sensing Resistance(Rs): 2KΩ-15KΩ(in 50ppm NH3) * Sensitivity(S): Rs(in air)/Rs(5000ppm CH4)≥5 * Slope(α): ≤0.6(R100ppm/R50ppm NH3) CONDITION * Tem. Humidity: 20℃±2℃;65%±5%RH * Standard test circuit: Vc:5.0V±0.1V; VH: 5.0V±0.1V * Preheat time: Over 48 hours Manual:


Buy Now

1/2/5/10pcs New Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 Arduino Pro Mini picture
1/2/5/10pcs New Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 Arduino Pro Mini


1/2/5/10pcs New Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 Arduino Pro Mini picture
1/2/5/10pcs New Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 Arduino Pro Mini


1/2/5/10pcs New Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 Arduino Pro Mini picture
1/2/5/10pcs New Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 Arduino Pro Mini


1/2/5/10pcs New Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 Arduino Pro Mini picture
1/2/5/10pcs New Pro Micro Atmega32u4 5v 16mhz Replace Atmega328 Arduino Pro Mini