Käyttöohje: https://adwashop.com/manual/manual_ad11_12.pdf

AD11 is the most advanced microprocessor based Waterproof pH/Temp pocket testers in the market. Fast, stable and precise these testers are for users that require the greatest accuracy.

Simple user-replaceable pH/Temp probe: just unscrew the plastic ring on the top of the electrode and replace it with a new one!
2 rows display LCD (reads both pH and temperature measurements) and built-in HOLD function that freezes the display for easy and accurate recording. Other features include stability indicator, automatic calibration and automatic temperature compensation.