MQ-2 MQ2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module
Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc. ;
Module Features :
1. Using high-quality dual-panel design, with power indicator and TTL signal output instructions ;
2. The switching signal having a DO (TTL) output and ****og output AO ;
3. TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )
4. ****og output voltage with the higher concentration of higher voltage.
5. A gas, natural gas, city gas , smoke better sensitivity.
6. There are four screw holes for easy positioning ;
7. Product dimensions : 32 (L) * 20 (W) * 22 (H)
8. Has a long life and reliable stability
9. Rapid response and recovery characteristics
Input voltage : DC5V Power consumption ( current ): 150mA
DO output : TTL digital 0 and 1 ( 0.1 and 5V)
AO output :0.1-0 .3 V ( relative to pollution ) , the maximum concentration of a voltage of about 4V
Special note: After the sensor is powered , needs to warm up around 20S, measured data was stable , heat sensor is a normal phenomenon , because the internal heating wire , if hot is not normal .
1. VCC: positive power supply (5V)
2. GND: power supply is negative
3. DO: TTL switching signal output
4. AO: ****og signal output
Schedule for sending parcels is M-W-F ONLY. Payments should be received in the morning of MWF if you want your item to be shipped on that scheduled day. As I leave by lunch to send out of town orders already. Otherwise, it would be on the next schedule date. Thanks!
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This seller has been a member since: Apr. 11, 2015
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