MIX8423 Electrochemical Phosphine(PH3) Gas Sensor

  • Target Gas: PH3
  • Range :0 ~ 10ppm
  • Application: Industrial monitors leakage detection, Smart grain storage

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Principle Introduction:

MIX8423 is an electrochemical PH3 sensor developed by Mixsen. It uses the principle of electrochemistry. There is a reference electrode inside the sensor, which greatly improves the stability of the sensors. When the sensor senses the phosphine, the working electrode and the counter electrode react with the redox reaction, through measure the current to get the concentration of phosphine.


High selectivity & sensitivity to PH3
High accuracy
Linear output


Industrial monitors leakage detection
Smart grain storage

Technical parameters :

Item Specification
Target Gas PH3
Measurement Range 0~10 ppm
Maximum Overload 20 ppm
Sensitivity 1.70 ± 0.30 μA/ppm
Repeatability ±2%
Response Time(T90) < 45 Seconds
Resolution 0.1 ppm
Long Term Output drift <2% per year
Life Expectancy(in air) 2 Years
Operating Temperature Range -20 ~ 50˚C / 15~90% RH
Operation Press 0.1MPa±10%
Bias Voltage Not required
Note: All measurements were taken at 20˚C, 50%RH at 1013hPa

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