Digital 0.01 Water Quality Purity Test PH TDS Meter Tester Portable Pen

Features: Hold function: Saves measurements for convenient reading and recording Auto-off function: Turns off meter after 10 minutes of non-use to conserve batteries Dual Range: Measures form 0-999ppm, with a resolution of 1ppm. From 1,000 to 9,990ppm, the resolution is 10ppm, indicated by drinking x 10image, Factory calibrated This item can be used in: water purifiers and filters, food (vegetable, fruits) & drink quality monitoring, pools and spas, aquariums, hydroponics. Specification: Rang: 0-9990ppm Accuracy: +/-1.5% Battery: 2 x 3V Button Cell battery Item size:142mm x 23mm x 13mm Package included: 1 x TDS Meter Tester Details pictures: