The ZT-2 is a premium TDS meter that's perfect for testing water in aquariums, drinking water, hydropnics and Aquaculture .  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: Meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
• Comes in a retail-ready package.

Specifications

Range: 0 - 999 ppm (mg/L)

Resolution: 1 ppm (0-999 ppm)

Accuracy: +/- 3%

Conversion Factor: NaCl (avg. 0.5)

Power source: 2 x 1.5V button cell batteries (included)  (357A)

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 weight: 31.2g (1.1 oz)