The PH-708 was manufactured by Tecpel, and is a pH/mV meter with a pH range of 0 to 14 pH x 0.01 pH and an mV range of -1999 mV to 1999 mV. The wide manual temperature compensation adjustment can be set through a button on the front panel. A button for the calibration of the pH level is also designed into the instrument.
An optional Automatic Temperature Compensation (ATC) probe can be employed to adjust the temperature compensation of the pH function. The model is also equipped with an auto-shutdown feature, a data hold design, and a RS232 computer interface.