Ziqqucu Ammonia Gas Detection NH3 Gas Sensor MQ-137 Module MQ137 Household Appliance Accessories Analog TTL Level Output

isCustomized：Yes Theory：Hall Sensor Model Number：MQ137 Ammonia gas sensor NH3 gas sensor module Material：Mixture Type：Gas Sensor Output：Analog Sensor Brand Name：Ziqqucu Origin：Mainland China Use：Gas Sensor

isCustomized: Yes Theory: Hall Sensor Model Number: MQ137 Ammonia gas sensor NH3 gas sensor module Material: Mixture Type: Gas Sensor Output: Analog Sensor Brand Name: Ziqqucu Origin: Mainland China Use: Gas Sensor