Gravity: Analog pH Sensor / Meter Pro Kit for Arduino Buttons With relays

With relays

Power supplied to the kit directly powers the STA540 and should be within 8 to 22V

by soldering the headers in from the opposite side

Pololu dual VNH5019 motor driver shield for Arduino with included hardware

then you will likely need to change the analogue gain by writing to location 1

Gravity: Analog pH Sensor / Meter Pro Kit for Arduino Buttons With relaysGravity: Analog pH Sensor Meter Pro Kit For Arduino is a professional Arduino pH Sensor Meter Kit with an industrial electrode . The industrial ph sensor for Arduino has a built in simple, convenient, practical connection and long life (up to 1 year), which makes it very suitable for long term online monitoring. It has an LED that works as the Power Indicator, a BNC connector, and a PH2. 0 sensor interface. To use it, just connect the pH sensor with