MQ-135 Sensor Air Quality Sensor NH3, Benzene, Alcohol, Smoke, Hazardous Gas Detection Module
$67.66
$106.9
MQ-135 Sensor Air Quality Sensor Hazardous Gas Detection Module NH3,Benzene,Alcohol,smoke Size: 32 mm X22mm X27mm Main chip: the LM393, MQ-8 gas sensor Working voltage: DC5V With a signal output instructions. Dual signal output (TTL level output and analog output) TTL output valid signal for low level. (when the low output electric signal lights at 4. ordinary times, can be directly pick up SCM) Analog 0 ~ 5 v voltage, the higher the concentration, the higher the voltage. Quick response recovery features
