AJMRTC ZE08-CH2O Formaldehyde Sensor Module, Pre-Calibrated Electrochemical HCHO Detector, UART Serial Port & Analog Output, Formaldehyde Concentration Tester for Arduino, Air Quality Monitor, Smart

AJMRTC ZE08-CH2O is a miniaturized electrochemical formaldehyde detection module, pre-calibrated to detect CH2O gas concentration in ambient air. Adopting mature electrochemical sensing technology, this HCHO sensor delivers reliable measurement with built-in temperature compensation to reduce environmental drift. It supports both UART serial port and analog voltage dual output, easy to connect with Arduino, Raspberry Pi and other mainstream microcontrollers for secondary development.

With high sensitivity, good gas selectivity and strong anti-interference performance, this formaldehyde sensor works steadily for indoor air quality monitoring, air purifier renovation, smart home equipment and new house decoration detection. The module features reverse power protection, low power draw and long service life. Warm-up time 3 minutes, response and recovery time 60 seconds, quickly feedback real-time formaldehyde concentration data for your DIY air monitoring system.

1. Model: ZE08-CH2O
2. Brand: AJMRTC
3. Detection Gas: HCHO / Formaldehyde (CH2O)
4. Detection Range: 0 ~ 5ppm
5. Resolution: 0.01ppm
6. Working Voltage: DC 3.7V ~ 5.5V
7. Output Signal: UART 3V TTL serial output, 0.4~2V analog voltage output
8. Warm-up Time: 3 min
9. Response Time: 60 s
10. Recovery Time: 60 s
11. Principle: Electrochemical
12. Feature: Pre-calibrated, built-in temperature compensation, reverse polarity protection
13. Application: Air quality monitor, air purifier, smart home, DIY detection equipment