ZE08-CH2O detection equivalent, electrochemical ch2o detection.
*High sensitivity &resolution, Low power consumption, Long life *UART/Analog Voltage/PWM wave output * Good stability, excellent ability of Anti-interference * Temperatur.
PIN Pin4 Pin3 Pin2 Pin7 Pin1 Pin5 Pin6
Table 2
Instruction Vin（Voltage input 3.7V～9V）
GND DAC (0.4～2V,for 0-5ppm)
PWM HD (Zero calibration，only for factory use)
UART（RXD） 0～3.3V data input UART（TXD） 0～3.3V data output
Communication Protocol:
Fig..
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