Principle Introduction:
ZE07-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 a combination of mature electrochemical detection principle and sophisticated circuit design.

Applications :
Portable detector, air-quality monitor device, air fresher, fresh air ventilation system, air-condition, smart home device &etc.

Technical parameters :

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

Model No.	ZE07-CH2O
Target Gas	CH2O
Interference Gas	Alcohol, CO &etc.
Output Data	DAC(0.4～2V standard voltage output)
Output Data	UART Output(3V Electrical Level)
Working Voltage	3.7V～9V (No 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 :

PIN15	Vin (Voltage input 3.7V-9V)
PIN5、PIN14	GND
PIN1	VOUT(Voltage output 3.0V)
PIN3	Reserved
PIN4	Reserved
PIN7	UART (RXD) 0~3.0V Data input
PIN8	UART(TXD) 0~3.0V Data output
PIN9	Sensor Analog signal
PIN10	DAC 0.4V-2V (0-full measuring range)
PIN2/PIN6/PIN11/PIN12/PIN13	NC

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