The HI991001 is a compact, waterproof, portable pH/temperature meter that is supplied complete including a rugged carrying case and a unique titanium body pH electrode that has a built-in temperature sensor. The meter features a large, dual level LCD display for easy viewing of the pH, temperature, and status indicators. The operation of the meter is simplified to two buttons. The HI991001 has an exceptional long battery life of 1400 hours of continuous use.
The HI991001 meter features a large multi level LCD screen which displays both pH and temperature readings simultaneously with 0.01 pH resolution and an accuracy of ±0.02 pH. The LCD screen also has indicators for calibration status and stability, as well as on-screen tutorial messages. The HI991001 has many advanced features that are found in more expensive portable instrumentation including automatic calibration, buffer recognition,and temperature compensation. The battery percent level is displayed at start up alerting the user to the remaining battery power that is available.