MQ-7 Semiconductor Sensor CO Gas Sensor Module for Arduino Raspberry pi Mega

MQ-7 Semiconductor Sensor CO Gas Sensor Module for Arduino Raspberry pi

Technical Data
- Heater Voltage: 5± 0.2V (AC or DC)
- Working current: 140mA
- Loop Voltage: 10V( <=15V DC)
- Load Resistance: 10K (Adjustable)
- Concentration: 10-1000ppm
- Sensitivity: >=3%
- Response Time: <=1S(Heater Time 3-5min)
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Recovery Time: <=30S
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Power Consumption: <=0.7W
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Working temperature: -10~50 ^o C
- Woring humidity: 95%RH
- Use age: 5 years
- Size: 35mm×22mm×18mm(L×W×H)

Features
- Signal output light indicator;
- Analog and level signal output;
- High and low level signal output signal for low level effectively, can be directly by single chip microcomputer;
- On carbon monoxide gas has high sensitivity and good selectivity;
- Has a long service life and reliable stability;
- Rapid response recovery features;

Application
-Mainly used in homes, factories, underground work indoor carbon monoxide gas detection