Product Overview
The MQ-7 is a Carbon Monoxide (CO) sensor.
Technical parameters:
- Size: 32X22X27mm
- Main Chip: LM393, ZYMQ-7 gas sensor
- Operating Voltage: 5VDC
- Input Voltage: 5VDC
- Power: 150mA (note that the heater must be on for at least 30 seconds before readings are valid)
- DO Output: 0 or 5V. Trigger level is set using the onboard potentiometer
- AO Output: 0-5V depending on the quantity of CO present. See datasheet for details
