56KΩ.1uF

.1uF

1KΩ

DIY Geiger Counter Geigetbot Settings:Auto-Adjust: OFFRMS Window: 1Delay Window: 18Volume Threshold: 20000Sample Rate: 22050Disable Measurement Mode: OFFHysteresis Filter: 0Input Polarity: Negative OnlyWavelet Filter: OFFInput Gain Control: 1.00Ultrafast Rates: OFF

Adding this wire and Cap to the LED+ output will create audibleclicking heard by any standardheadphones or amplifier

GK5 Geiger Board

To iPhoneor iPad

To Androidphone