Winsen ZE21-H2 Vehicle BMS H2 module


ZE21-H2 is a special-purpose and miniaturization electrochemical module. It utilizes the electrochemical principle which makes the module with high selectivity and stability. The built-in temperature sensor can do temperature compensation, and it has digital output and analog voltage output. It is a combination of mature electrochemical detection principles and sophisticated circuit design.

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Hydrogen leakage and leak detection.
High sensitivity
High resolution
Low power consumption
Long life
Uart output

Model No. ZE21-H2
Detection Gas Hydrogen leakage integrated gas
Interfering gases Carbon dioxide, etc.
Output UART output (3.3V TTL)
Working Voltage 5~10V DC
Preheat time 40 seconds
Response Time(T90) ≤5 seconds
Recovery time ≤60 seconds
Detection range 0~20000ppm
Resolution 50ppm
Working Temperature Range (°C) -30℃~65℃
Working Humidity Range 15%RH-90%RH(no condensation)
Storage Temperature 30℃~65℃
Life span 3-5 years (in the air)


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