HM Digital DM-1 Commercial In-Line Dual TDS Monitor

The DM-1 is a commercial-grade TDS monitor measuring TDS feed (input) water vs. product (output) water of a water filtration system at any time. . With its shielded cables and diagnostic messaging this robust device is ideal for Reverse Osmosis (RO), Deionized water (DI) filtration systems that work well in applications such as drinking or potable water, Water treatment, Aquariums, Hydroponics, and many more

Features:

• Highly efficient and accurate due to its advanced microprocessor technology
• Displays TDS levels of the Feed Water and Product Water with in & out electrode probes
• Auto-Off function conserves battery power (Shuts off automatically after 10 minutes)
• Factory Calibrated: meters are calibrated with a 342 ppm NaCl solution.
• Diagnostic error messaging
• Comes equipped with two 1/4 inch T-fittings (Also available with 3/8″ or 1/2″ fittings)

Specification:

• TDS Range: 0~9000ppm
• Resolution: 1ppm (100~999), 10ppm (1000~5000)
• Accuracy: ±2%
• Conversion Factor: NaCl (avg. 0.5)
• Cable Length: 0.6m /2.0ft, 
• Sensor: Dual, 1/4″ diameter for quick-connect fittings (model SP-3, included)
• Calibration: Analog
• Power Source: 2 x AA batteries (included)
• Size: 7.6 x 2.0 x 4.7cm (3.0 x 0.8 x 1.9 in)
• Weight: 79g (2.8oz.)