HM Digital PM-2 External In-Line TDS Purity Monitor - Alarm Alert with Display water testing kit Lot Number: Stamped on each

Lot Number: Stamped on each sachet

920 plastic bottles every year

Lab-Grade Accuracy: NIST-traceable pH 7

This 3-pack combo provides the ultimate value for committed users seeking 18 months of clean

HM Digital PM-2 External In-Line TDS Purity Monitor - Alarm Alert with Display water testing kit Lot Number: Stamped on eachAn ideal monitor alert for water coolers and other enclosed water purification systems. Alerts a user when the filtration system requires service. FEATURES External single line internal TDS monitor that is ideal for most water purification systems. Includes a light and optional alarm that alerts the user service is required when the TDS level reaches the pre programmed set point. User defined set points (any even number between 2 and 200).