For Testing The PPM's Of Colloidal Silver!
As well as testing Hydroponics Solutions, RO/DI Water,
Metal Halide and High pressure sodium

Housed in a pocket sized ABS case, this electronic Total Dissolved Solids tester is very durable. It is the ideal meter for hydroponics, fish farming, agriculture, plating and water purification applications. TDS 1 is supplied complete with protective cap, calibration screwdriver and 4 x 1.4V batteries and storage case.

Wide Measurement Range
TDS1 = 1 to 999 ppm

Excellent Accuracy
+ 2% Full Scale

Long Battery Life
more than 1000 measurements

ATC
Automatic Temperature Compensation

Pre-Calibrated
Each meter is pre-calibrated to the proper setting by Hanna at the factory.
There is no need for you to calibrate the meter upon receipt.
It is ready to use straight out of the box.

Easy To Use
Simply push the switch to the ON position. Stick the tip of the meter into your solution. The amount of total dissolved solids in your solution, in PPM's (parts per million), is displayed on the readout.