Features1Easy to clean: the electrode protective cover can be removed for cleaning the probe and the sheath 2Fast measurement: due to the exquisite sensor element, a measurement can be completed in 2?6 seconds 3Easy to use: the pen electrode can be directly inserted into the mouth of the drinking bottle for measurement 4Made of high-quality ABS plastic material, the product is , sturdy and durable, and has a long service life 5Application scope: cleanness of purified water production and drinking, boiler water, swimming pool waterSpecificationItem Type: Water Quality TesterProduct Material: ABSProduct Weight: Approx 56g/2.0ozProduct Size: Approx 15.3 x 3cm/6.0 x 1.2inBattery Information: 2 x Button Batteries LR44 (Not Included)Measuring Range: 0~9990ppmAccuracy: 2% (F.S)Automatic Temperature Compensation: 0~60Working Temperature: 0~50Application scope: cleanness of purified water production and drinking, boiler water, swimming pool water,etcPackage List1 x Water Quality Test Pen 1 x Manual 1 x Leather Case