MQ137 Ammonia Sensor for Arduino IOT platforms Dimensions 40mm x 40mm x

Dimensions 40mm x 40mm x 11mm Weight G

Open Source Hardware

Motor parameters:

3 oz-in) at 6V

Quiescent current: 5mA

MQ137 Ammonia Sensor for Arduino IOT platforms Dimensions 40mm x 40mm xOne size : 32mm X22mm X30mm L * W * H Second, the main chip : LM393, NH3 gas sensing probe Third, the working voltage : DC 5V Four, characteristics: 1, with the signal output LED indicates ; 2 , dual signal output ( analog output , and TTL level output ) ; 3, TTL output valid signal is low ; ( lights lit when the output is low, which can be accessed microcontroller IO port ) 4 , analog output increases with the concentration , the higher the