Pulse Counters

ESPGeiger supports pulse-based Geiger counters that sends a I/O pulse for each detected count.

Counter Image Notes
BR-6 BR-6  
CAJOE RadiationD-v1.1 (and other clones) CAJOE RadiationD-v1.1 Compatible with CAJOE RadiationD v0.8/1.1/1.2 - v1.1 is by far the most common. Pulse out marked as VIN on some models
CAJOE GC-ESP32 CAJOE GC-ESP32 ESPGeiger is also compatible with the ESP32 on board, no need for an external ESP.
DiY-GDC MightyOhm  
DIY GeigerKit DIY GeigerKit  
GeigerHV    
GGreg20 GGreg20  
MightyOhm Kit MightyOhm  
NetIO GC10 NetIO GC10  
RHElectronics Counters RH-K-GK-2-A  
SparkFun Geiger Counter 11345  

Special thanks to all the above original creators. Without your hard work and inspiration this project would not be possible!