HM Digital TDS-3 Handheld TDS Meter with Carrying Case – 0–9990 ppm, ATC, Thermometer 810666003310 "I run this unit 24/7

"I run this unit 24/7 and have not had any problems for the past two months

then discard it

Temperature accuracy is +/-2%

The HM Digital LSM-100 Commercial EC/TDS Monitor is designed for professional applications requiring continuous water quality monitoring

300 hours of use

HM Digital TDS-3 Handheld TDS Meter with Carrying Case – 0–9990 ppm, ATC, Thermometer 810666003310 "I run this unit 24/7HM Digital TDS 3 Handheld TDS Meter with Carrying Case Monitor water purity anywhere with the HM Digital TDS 3 a professional grade, pocket sized Total Dissolved Solids (TDS) meter trusted for water purification, hydroponics, aquaculture, reverse osmosis (RO) system verification, colloidal silver production, pool & spa testing, and wastewater regulation. Powered by advanced microprocessor technology, the TDS 3 delivers fast, accurate ppm readings with