GrandSiri Distinguished Water Measure Pocket LCD Aquarium Digital pH Tester

Distinguished Digital pH Tester, Feature Item Net Weight Approx. 57g (after installed batteries), Measuring pH Range 0.0 - 14.0 pH, Operating Temperature 0 - 50C (32 - 122F), Resolution 0.1 pH, Calibration Manual 1 point, Accuracy +/-0.1 pH (20C), +/-0.2 pH, Dimensions 152 x 29 x 20mm (5.984 x 1.142 x 0.591 inch), This digital pen style pH meter is an ideal instrument for aquarium, fishing industry, swimming pool, school laboratory, food and beverage etc, Very excellent, accurate and durable.