PH Meter Lutron YK21PH is a compact, portable digital pH Meter featuring a 0.00 to 14.00 pH meansurement range, 0.01 pH resolution and a larger LCD screan.
Features :
- High quality & general purpose pH measurement.
- Easy operating, compact size.
- Water resistance on the front panel.
- All function keys are used the rubber button.
- Large LCD display.
- High input impedance.
- Not necessary to adjust the pH range temperature compensation.

Specifications :
- Display : LCD, 21.5 mm [ 0.7″ ] digit height.
- Measurement Resolution : 0 to 14 pH x 0.01 pH.
- Accuracy : -+ 0.07 pH [ pH5 to pH 9 ], -+ 0.1 pH [ pH 4 to pH 10 ], -+ 0.2 pH [ pH 1 to pH 3.9, pH 10.1 to pH 13 ]
- Sampling Time : Approx. 0.4 second
- Operating Temp : 0 to 50c [ 32 to 122f ]
- Calibration Knob : external PH 4 & PH 7
- Power Consumption : Approx. 2.0mA
- Dimension : 205 x 68 x 30mm
- Weigth : 220 g/0.48 LB.