DM-1: Commercial Inline Dual TDS Monitor The DM-1 is a commercial grade TDS monitor that measures the TDS of the feed water (inlet) versus the product water (outlet) of a water filtration system at any given time.
 With its shielded cables and diagnostic messaging, this rugged device is ideal for reverse osmosis (RO), deionized (DI) water filtration systems that work well in applications such as potable or drinking water, water treatment, aquariums, hydroponics and much more.

 CHARACTERISTICS:
 Highly efficient and precise thanks to its advanced microprocessor technology.
 View TDS levels of feed water and product water with inlet and outlet electrode probes.
 The auto-off function conserves battery power (automatically turns off after 10 minutes).

 Factory calibration:
 Our meters are calibrated with a 342 ppm NaCl solution.
 Diagnostic error messages

 SPECIFICATIONS
 TDS Range: 0~9000ppm
 Resolution: 1ppm (100~999) 10ppm (1000~5000)
 Accuracy: ±2%
 Conversion factor: NaCl (average 0.5)
 Cable length: 0.6m /2.0ft,
 Sensor: double, 1/4" diameter for quick-connect fittings
 Calibration: Analog Power supply: 2 AA batteries (included)
 Dimensions: 7.6 x 2.0 x 4.7 cm (3.0 x 0.8 x 1.9 inches)
 Weight: 79g (2.8oz)