Product description
MQ-2 Flammable Gas Smoke Sensor Module เซ็นเซอร์ตรวจจับแก๊สไวไฟและควัน
MQ-2 โมดูลตรวจจับแก็สไวไฟและควัน
The MQ-2 Gas Sensor module is useful for gas leakage detection in home and industry. It can detect LPG, i-butane, propane, methane ,alcohol, hydrogen and smoke.
คุณสมบัติ MQ-2 โมดูลตรวจจับแก็สไวไฟและควัน
1. Using the 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
After the sensor is powered, needs to wait for about 20S, measured data was stable, heat sensor is a normal phenomenon, because of the internal heating wire.
ข้อมูลเพิ่มเติม MQ-2 โมดูลตรวจจับแก็สไวไฟและควัน
•Size: 32mmX22mmX27mm
•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