HM Digital Deluxe Dual Inline TDS Meter DM-2 – Dual TDS Water Monitor

The HM Digital Deluxe Dual Inline TDS Meter DM-2 is a commercial-grade inline water quality monitor designed to measure total dissolved solids (TDS) in both feed and product water throughout your filtration system. Ideal for aquariums, RO/DI systems, hydroponics, and other water treatment applications, this durable dual-probe meter helps you know exactly when filtration components need replacing. :contentReference[oaicite:1]{index=1}

• Dual inline monitoring of TDS at two points in the water line  
• Accurate digital display with advanced microprocessor technology  
• Measures 0–9,990 ppm with dual range resolution  
• Shielded sensor cables and water-resistant housing for durability  
• Auto-off feature conserves battery power  
• Includes quick-connect fittings for easy installation  
• Factory calibrated, with optional digital recalibration