TDS pen uses:

The total capacity of the solution solids (Total dissolved solids, TDS) TDS pen used to detect water in order to evaluate the purity of water. TDS value is smaller, the purity of the water, the better.

Features:

• Brand new and high quality.
• This item can be used in: water purifiers and filters, food (vegetable, fruits) & drink quality monitoring, pools and spas, aquariums, hydroponics.
• Hold function: Saves measurements for convenient reading and recording.
• Auto-off function: Turns off meter after 10 minutes of non-use to conserve batteries.
• Dual Range: Measures form 0-999ppm, with a resolution of 1ppm. From 1,000 to 9,990ppm, the resolution is 10ppm.
• Measurement Range:0-9990ppm.
• Battery: 2 x 1.5V Button Cell battery (included).
• Size:15.5cm x 2.9cm x 2cm - 6.10inch x 1.14inch x 0.79inch.
   

Instructions for use:


Open the ON switch. 

The pen into the test solution, the solution must not exceed the height of 4cm (from the beginning of his writings) .

The pen and gently stir in the test solution, and so the reading is stable, the measured values ??by a large temperature TDS, and therefore temperature compensation to correct readings within 10-30 seconds TDS value will be fixed on the display In order to lock the value, press HOLD.

After use, wipe with a cloth written portion of the water, the pen cap back.
Package Included:
1 X TDS tester