Pocket Size TDS Meter

The perfect pocket size meter for both consumer or commercial use!

Model: TDS-IV
Part Number: TDS-4

MSRP: $35.00

Price: $21.00

2+ for $19.95 ea
5+ for $18.90 ea
Set of 10 for $17.85 ea
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HM Digital TDS-4 Handheld TDS/Temp Meter Features:

Highly efficient and accurate due to its advanced microprocessor technology
Hold Function -- Saves measurements for convenient reading and recording
Auto-off function -- Automatically shuts off meter after 10 minutes of non-use to conserve batteries
Display -- Large and easy-to-read LCD screen
Factory Calibrated -- Recalibration is not necessary, but can be done easily with a watch screwdriver

Easy to Follow Instructions!

Using a clean cup or glass, take a sample of your raw feed water. Remove the protective cap from the Tester. Push the "ON" button to activate LCD display. Submerse the tester's probes into the water sample and observe for approx. 10 seconds. Record the results. Repeat the same procedure with a sample of your reverse osmosis (RO) water. If the system is new or the membrane has been replaced, do not test the first tank of RO water. The first tank of product water will contain sanitizer and possibly carbon fines from your new filters. This will cause false reading. Use either of the following formulas to calculate the percentage of solids (TDS) that your membrane is removing:

TDS Meter Calculation Formula

Example:
Tap TDS = 260 ppm
RO TDS = 20 ppm
Rejection = [(260 - 20) / 260] x 100
= [240/260] x 100
≈(.923) x 100
= 92.3%
>Click to view other water testing devices

General

Weight

1.2 oz

Monitor Type

Handheld

Warranty

3 Years

Accuracy

+/- 2 %

Power Source

2 x 1.5V Button Cell Batteries

Materials

Operating Conditions

Temperature Range

1 to 50 °C

Measurement Range

0-9990

Dimensions

5.5 x .9 x .55 "

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