The Checker 1 is the world’s favourite pH tester. With a clear LCD display and a thin pH electrode. It is the ideal pH tester for those on a budget.

Features include:

~ Thin long-reach pH electrode.

~ 3000 hours battery life.

~ 2 point calibration.

We recommend that the pH testers electrodes are stored in a pH4 solution and that testers are calibrated in a pH7 solution. View Buffer Solution Satchets...


General use instructions for the Checker pH Meter.

„ To calibrate, simply put the electrode (ensuring it is clean and dry) into a sachet of ph7 buffer and wait for about 30 seconds for reading to settle. If the reading is outside of the range stated on the sachet, use the screwdriver trimmer to adjust the display to read 7.01.

„ You can re-seal the sachet by rolling the top over and using a "bulldog" clip. If you store this in a dry environment, away from sources of heat or cold, you can use this sachet of buffer a few more times. You may wish to recalibrate once a week or, if you use the ph meter less frequently, calibrate before each use to ensure accuracy.

„ After calibration, rinse the meter (without getting the red part wet) and shake to dry. The probe should be stored in buffer 4 solution when not in use. Always rinse the buffer 4 off before taking a reading.

HI-98103

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