100% brand new and high quality
Size: 32X20X22mm
The main chip: MQ135 gas sensing probe
Operating voltage: DC 5V
Power (current) : 150mA
DO Output: 0.1V/5V
AO Output: 0.1-0.3V
MQ-135 Air Quality Sensor Detection Module
$1.80
Availability: 50 in stock
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