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

High-concerned chemical：None isCustomized：Yes Type：Gas Sensor Output：Analog Sensor Brand Name：alloet Origin：Mainland China Use：Gas Sensor Sensor Module：NH3 Gas Sensor Module

High-concerned chemical: None isCustomized: Yes Type: Gas Sensor Output: Analog Sensor Brand Name: alloet Origin: Mainland China Use: Gas Sensor Sensor Module: NH3 Gas Sensor Module