HM Digital ZT-2 Basic TDS Tester

The ZT-2 is the first of HM Digital's new HMD line. It's a low-cost TDS meter that's perfect as a promotional item. Though inexpensive, this meter does not skimp on quality, features and design. Features Economy model that is ideal for end-users and retail products. Highly efficient and accurate due to its advanced microprocessor technology. Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries. Measurement Range: 0-999 ppm. Display: large and easy-to-read LCD screen. Factory Calibrated : our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated. Need help deciding which meter is right for you?   Specifications Range: 0 - 999 ppm (mg/L) Resolution: 1 ppm (0-999 ppm) Accuracy: +/- 3% EC-to-TDS Conversion Factor: NaCl (avg. 0.5) Power source: 2 x 1.5V button cell batteries (included)  (357A or equivalent) Battery life: Approx. 1000 hours of usage Dimensions: 14 x 2.3 x 1.5 cm (5.5 x 0.9 x 0.75 inches) Meter weig