WIDE USE: Ideal for all water quality testing, water purification applications, aquariums and saltwater tanks, wastewater regulation, aquaculture, hydroponics, laboratory and scientific testing, pools, ecology testing, colloidal silver, water treatment, etc.

FACTORY CALIBRATED: the TDS meters are factory-calibrated at 342 ppm NaCl and designed to stay consistent

ACCURATE: TDS readings are adjusted with automatic temperature compensation, assuring users of consistent and accurate measurements of total dissolved solids

HOLD AND AUTO-OFF FUNCTIONS: the tester has data-hold function, it locks your readings making it easy to record. The instrument will automatically shut down after 9 min of inactivity

EASY TO USE: Get your testing results in seconds. Turn on, immerse the electrode in the testing liquid, press Hold button and read the numbers