Lutron PH Meter Economical PH-211 is a compact, pocket sized digital tool used to measure the acidity or alkalinity of liquids from 0 to 14pH.
Features :
- Economical cost digital PH meter.
- General purpose applications.
- Easy operation.
- Compact size, light weight.

General Specifications :
- Measurement : pH
- Range / Resolution : 0 to 14 pH x 0.01 pH.
- Accuracy : -+ 0.07 pH { pH 5 – pH 9 }, -+ 0.1 pH { pH 4 – pH 10 }, -+ 0.2 pH { pH 1 – pH 3.9, pH 10.1 – pH 13 }.
- Input Impedance : 10^12 ohms.
- PH range temp. compensation : Not necessary to adjust.
- Sampling time : Approx. 0.4 second
- Operating Temperature : 0 to 50C { 32 to 122F }
- Operating Humidity : Less than 80% RH.
- Calibration VR : External PH 4 { slope adj. } & pH 7 { Cal adj. } calibration adjustment VR.
- Power Supply : 006P DC 9V battery.
- Power Supply : Approx. 2.0 mA
- Dimension : 134 x 60 x 34 mm { 3,5 x 2,4 x 1,3 inch }
- Weight : 195 g / 0. 43 LB