PH Sensor Module with PH Probe - Water Quality Monitoring Sensor [C] Audio Amplifier Fixing Method: Dual side grub

Fixing Method: Dual side grub screws

Connect the base terminal of the transistor to the 5V GPIO pin of the controller or V supply line of the Digital Circuit but care should be taken as it will need 120mA of base current if you are operating in high gain region

Raspberry Pi 2 Model B+

MINI560 5V 5A DC-DC Step-Down Module Features:

Drones etc where high current is involved

PH Sensor Module with PH Probe - Water Quality Monitoring Sensor [C] Audio Amplifier Fixing Method: Dual side grubThe PH Sensor Module with PH Probe is a reliable and easy to use solution for measuring the acidity or alkalinity of liquids. The kit includes a high sensitivity pH probe and a signal conditioning module that outputs analog signals, making it suitable for DIY projects, aquariums, hydroponics, laboratory use, and industrial applications. Features: Measures pH levels accurately in the range of 0 to 14. Comes with a high quality pH glass electrode probe.