MQ-2 MQ2 Smoke Gas LPG Butane Hydrogen Gas Sensor Detector Module For Arduino
SPECIFICATIONS
Brand Name: HESAI
Choice: yes
DIY Supplies: Electrical
Electronic: No
High-concerned chemical: none
Origin: Mainland China
Semi-finishedproduct: No
semi_Choice: yes

Purchase Notes
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Gas may be used in homes and factories leakage monitoring device suitable for the detection of gas, butane , propane , methane , smoke , etc.
Using high-quality dual-panel design, with power indicator and TTL signal output instructions;The switching signal having a DO (TTL) output and analog output AO ;TTL output valid signal is low . ( Low-level signal when the output light can be directly connected to the microcontroller or relay module )Analog output voltage with the higher concentration of higher voltage.A gas, natural gas, city gas , smoke better sensitivity.There are four screw holes for easy positioning ;Has a long life and reliable stability Rapid response and recovery characteristic
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 .
VCC: positive power supply (5V)
GND: power supply is negative
DO: TTL switching signal output
AO: analog signal output





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- Standard Shipping: Standard Shipping (12–18 Business Days)
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- Returns: 30-day hassle-free return window
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- Factory Direct: ISO/TS 16949 certified manufacturer
- Quality: 100% electrical continuity tested before shipment
- Experience: 15+ years in automotive connector industry
- Support: Professional technical support available
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