HM Digital DM-1 In-Line Dual TDS Monitor

HM Digital DM-1 In-Line Dual TDS Monitor – Standard Water Quality Tester

Take the guesswork out of your water purification with the HM Digital DM-1. This reliable, dual-line TDS monitor allows you to measure the Total Dissolved Solids of both your source water and your purified water instantly.

Reliable Monitoring for Pure Water Systems

The HM Digital DM-1 is the perfect diagnostic tool for water-fed pole window cleaners, aquatic hobbyists, and hydroponic growers. By installing the sensors "in-line," you can monitor the performance of your RO membranes and DI resin at the push of a button. It tells you exactly when your tap water is too high or when your resin is spent, preventing you from using "dirty" water on the job.

Designed for simplicity and durability, the DM-1 features a large, easy-to-read LCD screen and comes factory-calibrated. Its compact design makes it easy to mount directly onto your van system or portable trolley, ensuring you always have eyes on your water purity levels.

Key Features & Benefits

• Dual-Line Measurement: Displays the TDS of the feed water (In) and the product water (Out) with a simple slide switch.
• Highly Efficient: Advanced microprocessor technology provides accurate readings from 0-9990 ppm.
• Auto-Off Function: Conserves battery life by automatically turning off the unit after 10 minutes of non-use.
• Factory Calibrated: Ready to use out of the box, calibrated with a 342 ppm NaCl solution.
• Easy Installation: Includes two 1/4-inch Quick-Connect T-fittings for hassle-free setup in standard tubing.
• Long Battery Life: Powered by two long-lasting button cell batteries (included).

Technical Specifications