The ph meter tester features a large multi level lcd which displays both ph and temperature readings simultaneously. The ph readings are displayed with a 0.1 Ph resolution and with an accuracy of ±0.1 Ph. The ph range of the hi98107 is from 0.0 To 14.0 Ph. An exposed temperature sensor allows for rapid automatic temperature compensated ph measurements. Temperature can be set to display in degree celsius or degree fahrenheit. The lcd screen has stability and calibration tag indicators. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available. The ph electrode uses a unique reference cell design that utilizes an extractable cloth junction. A clogged junction will typically exhibit erratic readings that will not stabilize. Simply extracting a small portion of cloth from the meter will clear any clog by exposing a fresh, clean surface. The ability to clear any clogging will extend the life of the ph electrode.