1、[Easy Operation] Press the power button to turn on, immerse the pH meter electrode in the test solution and then stir gently until the reading is stable. 2、[Waterproof Design] The waterproof level of the portable PH water quality tester is IP65, which is more assured, light in weight and easy to carry around. 3、[0.00~14.00PH Range] The measuring range is 0.00~14.00PH, with high accuracy and convenient reading, ensuring accurate measurement and clear display result. 4、[Application Field] Suitable for aquaculture, industry, agriculture, food, water purification, pool, aquarium, paper industry, beauty and soil industries. 5、[Compact and Mini Size] Our mini size pen type PH meter allows you to easily put it in your pocket, so that you can take measurements anytime, anywhere. Item Type: PH Tester Material: ABS Model: PH-03(II)L Battery: 4 x LR44 Battery (Battery Not Included) Measuring Range: 0.00~14.00PH Resolution: 0.01PH Accuracy: ±0.1PH Application Areas: Aquaculture, industry and agriculture, environmental protection, food manufacturing, water purification, swimming pools, aquariums, fish hatcheries, food processing, laboratories, paper industry, beauty and soil industries. 1 x PH Tester (Battery Not Included) 1 x PH Probe 1 x Screwdriver 1 x Manual 1 x Storage Box