instructions: 1. Remove the cap from the pen and turn the switch on. 2. Dip the pen into the test solution but not more than 2cm. 3. Stir the pen in the solution, then stay stable and after 2-6 seconds the TDS value will display on the screen. Press the hold button to save the value and then look at it. 4. After using, dry the head the of the pen and put the cap back on. Please note: The body of the TDS pen should not be exposed to liquids, direct sunlight or high temperature. Avoid dropping it.
Package include: 1 x TDS Meter 1 x TDS Meter Carrying Case 1 x User Manual
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Hold function: saves measurements for convenient reading and recording
Auto-off function: turn on meter afte 8 minutes of non-use to conserve batteries, and will be locked automatically after 2 minutes.
Dual range: measures from 0-999ppm, with a resolution is 10 ppm, indicated by drinking*10 image, factory calibrated
Product Information Specifications for niceEshop LED Digital TDS Water Tester For Tank Aquarium Pool Hot Tub, Pen Tests Water Quality Tester, Blue Below:
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