reading value from GPIO 2 & 3 pi4

Hi, I've connected these two products to GPIO 2 and 3 as shown in the product diagram of the second link. How can I read the value of GPIO 2and 3 to determine if the geiger counter has beeped or not? https://thepihut.com/products/gravity-geiger-counter-module-ionizing-radiation-detector https://thepihut.com/products/gravity-i2c-ads1115-16-bit-adc-module-arduino-raspberry-pi-compatible