Features
1. Using high-quality dual-panel design, with power indicator and TTL signal output instructions
2. there are four screw holes for easy positioning
3. Analog output voltage with the higher concentration of higher voltage
4. TTL output valid signal is low. (Low-level signal when the output light can be directly connected to the microcontroller or relay module)
5. The switching signal having a DO (TTL) output and analog output AO
Special note
After the sensor is powered, needs wait about 20S, measured data was stable, heat sensor is a normal phenomenon, because the internal heating wire.
Specifications
Size:32 x 22 x 27mm
Chip:LM393, ZYMQ-2 gas sensors
Working voltage:DC 5V
AO output:0.1-0 .3 V (relative to pollution), the maximum concentration of a voltage of about 4V
DO output:TTL digital 0 and 1 (0.1 and 5V)
Input voltage:DC5V Power consumption (current):150mA
Package included
1 x MQ-2 gas sensor module
If you want another model, you can click on the ID
Model
Gas Detection
Item ID
MQ2
flammable gas/smoke
1144079
MQ3
alcohol steam
1414301
MQ4
Natural gas/Methane
1377624
MQ5
Liquefied gas/Methane/Coal gas /LPG
1378464
MQ6
Liquefied gas/Isobutane/Propane/LPG
1378477
MQ7
Carbon monoxide
915474
MQ8
hydrogen
1378425
MQ9
Carbon monoxide flammable gas
1378463
MQ131
Ozone Concentration
1183257
MQ135
Ammonia/sulfide/benzene vapor
1378465
A set of MQ
1005800
Additional information
| Weight | 0.007 kg |
|---|
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