* Professional PH/mV METER. PH range : 0 to 14 PH x 0.01 PH. mV range : -1999 mV to 1999 mV.
* Used the optional ORP probe to become a professional ORP meter.
* Wide manual temperature compensation adjustment can be operated by push button on the front panel easily.
* Calibration for pH 7, pH 4 and pH 10 by push button.
* Temperature compensation of pH function can be done by optional ATC (Automatic Temperature Compensation) probe.
* Auto shut off saves battery life.
* Memorize Max./Min. reading with recall.
* Data hold.
* RS232 computer interface.
 
https://www.sunwe.com.tw/lutron/PH-208eop.pdf