Check the listing for details. Thermo Orion 720A+ Benchtop pH-ISE-ORP Meter with New pH Electrode. Condition: Used. Listed at 387.80 USD. This Orion 720A+ meter includes a new Hanna HI 1110B combination pH electrode and electrode support stand. The beaker seen in photos is not included.With dual electrode inputs, the Thermo Orion 720A+ meter allows two measurements at the same time, perfect for a busy, multi-user laboratory. The pH autocalibration feature recognizes five pH buffers using built-in buffer/temperature tables. Express concentration results to three significant digits. Full five point concentration calibration with automatic blank correction improves results of low level measurements. User prompting walks you through each meter operation. Store data using the internal datalogger or print, via the RS232 port.These advanced meters are for analyses that require the highest accuracy for pH and ion concentration measurements. Key features of these Orion ion selective meters are:Direct ISE/pH readoutSimultaneous display of data/temperatureManual or automatic temperature compensationTemperature: −5 to 105°C, ± 0.1°C accuracy5 point Auto-Buffer recognition/CalibrationAdjustable isopotential pointSlope range: 80 to 120% effieciencyBNC connectorFunction: pH/ISE/mV/TRS232 interfaceAlarm limits, High/LowAutobankDatalogger 25 ** SEE LINKS TO MANUAL AND ISE ELECTRODE SELECTION GUIDE ON CHEM-RG.COM FOR MORE INFORMATION