نظرة عامةwater tester adopts upgraded agile titanium alloy probe and industrialgrade highprecision chips Remove the protective cover press the switch button immerse the probe of the TDS tester in the solution and you can get the reading immediately Accuracy 2 measuring range 09990ppm The digital water tester shuts off automatically after 5 minutes of nonuse to conserve batteries Features a hold function that saves measurements for convenient reading and recording Easy to use Just turn TDS meter on and stir water gently then stabilized readings will be autolocked on LCD in seconds Features a hold function that saves measurements for convenient reading and recording The lightweight and portable size of the TDS water meter allows you to easily carry it with you and measure it anytime anywhere Test the purity of drinking water to ensure its healthy monitor if Reverse Osmosis RODI System works properly whether filter need replaced maintenance aquarium hydroponicstest nutrients and pool etc