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CH419 voltage output type optical detector module consists of head-on PMT, high voltage power supply, voltage dividing circuit and amplifier circuit ; The current signal generated by the PMT is converted into voltage signal after being converted and amplified.

This product is characterized by low noise, wide response frequency bandwidth, strong anti-interference and adjustable gain ; The gain can be adjusted by either voltage or potentiometer.

The product can be used in in-vitro diagnosis, fluorescence detection, material analysis and other fields.


1) Control voltage : +4.0V ;

2) At  ±12V Input voltage, and test in dark environment ;

3) Pulse light source : Repetition frequency 200Hz, width 500μs ;

4) Measured at the peak sensitivity wavelength of 420nm ;

5) After preheating for 30min ;

6) Load : 1MΩ, 22pF ;

7) Output stabilization time when the control voltage jumps from +4.0V to +2.0V ;

8) No condensation.