Thermo Scientific Basic Benchtop pH Meters

These meters feature simultaneous pH and temperature display, automatic temperature compensation, choice of pH resolution and RS232 capability for downloading data. Accurate calibration is fast and easy with built-in auto buffer recognition at 4.01, 7.00 and 10.01. Model 410A is operated using only three buttons: "yes,"� "no"� and "mode."� Model 420A has a millivolt mode for ORP measurements. Each model has one BNC, one pin-tip, ATC and power inputs, an RS-32 output and is CE, CSA and UL approved. 110V.