TDS-3 Digital Water Quality Testing Meter

The meter can be used for the test of TDS and Temperature.  The probe is made of Titanium alloy which decreases the disturbance by the magnetism to the accuracy. 

Specifications:

• Testing range: 0 - 999 ppm
• Accuracy: +/- 2% (F.S.)
• Batteries: 2x 1.5V (AG13 or LR44)
• ATC (Automatical Temperature Compensation): 0 to 60 degree
• Working temperature: 0 to 50 degree
• Weight: 50 grams
• Dimension: 156x30x20 mm

Introduction:

TDS, Total Dissolved Solids, is used for the evaluation of water quality. The reading means the miligrams of TDS per liter, ie. mg/L.

The higher TDS reading, the more impurity content of the liquid/water. 

Importance:

• The device may not be used to test hot or flowing liquid/water.
• The device can be used to test the temperature.
• This device is not as sensitive as the expensive one, we recommend waggling it in the tested liquid for a while till the digital figure is unchanged, then read it, especially testing the tempreture.
• An example of classification of water by TDS: Purified water (TDS less than 50), Tap water (TDS less than 300) (Image 2 above).