LCD Digital PH Hydroponic Meter Pen Stick Measuring Tester

100% meter with protective plastic case and calibration screwdriverExcellent meter, very acurate and durable
Specification:
Measuring pH Range: 0.0 - 14.0 pHResolution: 0.1 pHAccuracy: ±0.1 pH (20°), ±0.2 pHOperating Temperature: 0 - 50° (32 - 122°F)Calibration: manual,1 pointItem Net Weight: approx. 57g (after installed batteries)Dimensions: 152 x 29 x 20mm (5.984 x 1.142 x 0.591 inch)
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