pH 4.00 Calibration Solution Liquid - Probe Calibration dfr0278 Key details include Measuring Range:

Key details include Measuring Range: -50 to +400

and so we aren't at the mercy of any third party vendors who may or may not be interested in keeping their code up to date or catering to our customer's needs

7V 500mAh is a rechargeable lithium cell with a JST connector

and most maker-friendly LiPo batteries

The Temperature Linear LM35 Analog Sensor is a temperature sensor with analog output designed for temperature logging

pH 4.00 Calibration Solution Liquid - Probe Calibration dfr0278 Key details include Measuring Range:pH 4. 00 Calibration Solution Atlas Scientific The Atlas Scientific pH 4. 00 Calibration Solution is a precision reference liquid used to calibrate pH sensors and EZO pH circuits. Accurate calibration is the foundation of reliable pH measurement without it, your sensor readings will drift and become untrustworthy over time. This solution is manufactured to strict NIST traceable standards, ensuring the pH value is accurate and consistent from bottle to