Water Purification and Testing

Manufactured by HM Digital, Inc

A TDS tester that's ideal for all water purification applications, wastewater regulation, aquaculture, hydroponics, and colloidal silver. Perfect for both consumer or commercial use. Carry one in your pocket at all times!

Features of the Model TDS-4

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.
Factory Calibrated: our meters are calibrated with a 342 ppm NaCl solution. Meters can be recalibrated with a mini-screwdriver.

Specifications
Range: 0 - 9990 ppm (mg/L)
Resolution: 1 ppm
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: 1000 hours of usage
Dimensions: 14 x 2.3 x 1.5 cm (5.5 x .9 x .55 inches)
Warranty: 3 Year

TDS Calibration Solution - Keeps your TDS Meter Operating Properly

For optimal performance, re-calibrate your meters periodically or if testing TDS or conductivity levels in wide or different ranges.

Features

NaCl calibration solution, available in 342 ppm or 1000 ppm.
Comes in lightweight HDPE plastic bottles.
Sealed with a coated foam liner.

Specifications

NaCl solution
Available in 342 ppm or 1000 ppm
3 oz. bottles (88.7 ml)

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