ZE08-CH2O formaldehyde gas sensor module

  • • Electrochemical principle
  • • Output DAC(0.4-2V) and UART

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  • Principle Introduction
Principle Introduction:
ZE08-CH2O is a general-purpose and miniaturization electrochemical formaldehyde detection module. It utilizes electrochemical principle to detect CH2O in air which makes the module with high selectivity and stability. It is built-in temperature sensor to make temperature compensation. It has the digital output and analog voltage output at the same time. It is a combination of mature electrochemical detection principle and sophisticated circuit design.
Applications :
Portable detector, air-quality monitor, air cleaner, air renewal system, air conditioner, smart home &etc.
Technical parameters :

Tips:For more parameter information, please refer to the latest manual provided by salesman.

Model No. ZE08-CH2O
Target Gas CH2O
Interference Gas Alcohol, CO &ect.
Output Data DAC(0.4~2V standard voltage output )
UART output(3V Electrical Level)
Working Voltage 3.7V~9V( With voltage reverse connect protection)
Warm up time ≤3 minutes
Response time ≤60s
Resume time ≤60s
Detection Range 0~5ppm
Resolution ≤0.01ppm
Operating Temp. 0~50℃
Operating Hum. 15%RH-90%RH(No condensation)
Storage temp. 0~50℃
Working life 2 years(in air)
Reference Circuit :
PIN Instruction
Pin4 Vin(Voltage input 3.7V~9V)
Pin3 GND
Pin2 DAC (0.4~2V,for 0-5ppm)
Pin7 PWM
Pin1 HD (Zero calibration,only for factory use)
Pin5 UART(RXD) 0~3.3V data input
Pin6 UART(TXD) 0~3.3V data output

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