HM Digital PM-1 OEM In-Line TDS Purity Monitor - Alarm Alert for Water Systems PH-80 5V x 2(AAA alkaline)

5V x 2(AAA alkaline)

Auto-Off function conserves battery power (Shuts off automatically after 3 minutes)

Dimensions: 14 x 2

Temperature Range: 0–55°C  |  32–130°F

Waterproof housing

HM Digital PM-1 OEM In-Line TDS Purity Monitor - Alarm Alert for Water Systems PH-80 5V x 2(AAA alkaline)The PM 1 is an OEM monitor alert sensor for water coolers and other enclosed water purification systems. It is an ideal alert when the filtration system requires service. FEATURES: OEM single line internal TDS monitor that is ideal for enclosed 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