The PHS-3C pH meter is a portable microprocessor-based pH/temperature meter. key board for the selection of the various functions. The possibility of automatically correcting errors in measurement due to temperature and the extreme simplicity of regulation all to permit a rapid and reliable execution of calibration and measurement. The display on the front panel reveals the temperature pH readings taken by the instrument. The instrument comes supplied with a combined pH electron and a probe for the measurement and compensation of the temperature. Specification : 1.Range: PH: 0.00-14.00PH Temp: 0-100 2.Resolution : PH: 0.01PH Temp: 0.1 3.Accuracy: PH: 0.02PH Temp: 0.5 4.Display: PH: 4-digital LED Temp: 3-digital LED 5.Automatic Temperature Compensation:0-50 6.Power Supply: In Label 7.Operating Temperature: 0-50 8.Calibration: 2 points with auto bufferrecognition Operation: 1.Connecting AC power supply. Turn on the meter by"ON-OEF" switch located back ofthe instrumen. 2.Connect the electrode to the iack back of the instrument. 3.Remove the protective cap of electrode. Put the electrode into the measured solution to be tested. Plug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so on Voltage: AC220V Color: As Shown Material: plastic Package Contents: 1 x PH Desktop Automatic Calibration Acidity Meter(The words on the product due to different batches, but it not affect the use) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.