HM Digital TDS-4 Pocket-Size TDS Meter HM Digital

A TDS tester that’s ideal for all water purification applications, drinking water testing, pools & spas, fresh water aquariums, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket at all times!

Features

• The smallest and lightest TDS meter on the market.
• Sleek design is perfect for personal or consumer use.
• Advanced microprocessor technology.
• Hold Function: saves measurements for convenient reading and recording.
• Auto-off function: the meter shuts off automatically after 10 minutes of non-use to conserve batteries.
• Measurement Range: 0-9990 ppm. From 0-999 ppm, the resolution is in increments of 1 ppm. From 1000 to 9990 ppm, the resolution is in increments of 10 ppm, indicated by a blinking ‘x10’ image.
• Display: large and easy-to-read LCD screen.
• Recommended for fresh water aquariums & aquaculture, horticulture & hydroponics, and pools & spas.
• Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.
• Need help deciding which meter is right for you?  

Specifications

Range: 0 – 9990 ppm (mg/L)

Resolution: 0-999: 1 ppm; 1000-9990 10 ppm (indicated by a ‘x10’ icon)

Accuracy: +/- 2%

EC-to-TDS Conversion Factor: NaCl (avg. 0.5)

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) (LR44 or equivalent)

Battery life: 1000 hours of usage

Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches)

Weight: 34g (1.2 oz)