Includes an internal digital thermometer (celsius).
The smallest and lightest TDS meter available on the market.
Hold Function - Saves measurements for convenient reading and recording.
Auto-off function - Turns off meter after 10 minutes of non-use to conserve batteries.
Dual Range - Measures from 0 - 999 ppm, with a resolution of 1ppm. From 1000 to 9990 ppm, the resolution is 10 ppm, indicated by a blinking 'x10' image.
Factory Calibrated: recalibration is not necessary, but can be done easily with a watch screwdriver. There's no need for messy solutions.
Recommended for aquariums & aquaculture, horticulture & hydroponics, pools & spas and water cooler professionals.

TDS Range: 0-9990 ppm (mg/L)
Temp. Range: 0-80 degrees Celsius
Resolution: 1 ppm, 1 degree Celsius
Accuracy: +/- 2%
ATC: Built-in sensor for Automatic Temperature Compensation of 1 to 50 degrees Celsius (33 to 122 degrees Farenheit)
Power source: 2 x 1.5V button cell batteries (included)
Battery life: over 1000 hours of continuous use
Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches)
Weight: 34g (1.2 oz)

Coffee and Espresso Quality Control
All water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver.
Perfect for both consumer or commercial use.
Perfect for aquarium owners - salt water fish, fresh water fish or reefs!
Carry one in your pocket at all times!
Measure the TDS levels or temperature of water anywhere, anytime!