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MQ-2 Gas Sensor (Black)

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MQ-2 Smoke and Flammable Gas Sensor Module untuk Arduino.Sensor ini dapat mendeteksi dengan sensitiv gas2 seperti Methane, Butane, LPG, dan asap.

Product Description:
- Size: 32mmX22mmX27mm
- Chip: LM393, ZYMQ-2 gas sensors
- Working voltage: DC 5V
- Characteristics:
1. With a signal output instruction.
2. Dual signal output (analog output, and TTL level output)
3. TTL output
4. 0~5V analog output voltage, the higher the concentration the higher the voltage.
5. The gas, natural gas, city gas, smoke better sensitivity.
6. With a long service life and reliable stability
7. Rapid response and recovery characteristics

Standard Working Condition
VC Circuit voltage 5V0.1 AC or DC
VH Heating voltage 5V0.1 AC or DC
RL Load resistance adjustable
RH Heater resistance 33Kohm5% Room temperature
PH Heating consumption Less than 800mW

Environment Condition
TO Operating Temp. -20C-50C
TS Storage Temp. -20C-70C
RH Relative Humidity 95 %
O2 Oxygen Concentration 21%(standard condition) Oxygen concentration can affect sensitivity Minimum value is 2%

Sensitivity Characteristics
RS Sensor Resistance 3Kohm-30Kohm (1000ppm iso-butane) Detecting concentration scope:
200ppm-5000ppm LPG and propane
300ppm-5000ppm butane
5000ppm-20000ppm methane
300ppm-5000ppm H2
100ppm-2000ppm Alcohol
(3000ppm/1000ppm iso-butane) Concentration slope rate 0.6
Standard detecting Condition Temp.: 20C2C VC: 5V0.1
Humidity:65%5% VH:5V0.1
Preheating Time Over 24 hours