Aquachek 512138 TruTest Digital Reader Swimming Pool Spa Test Kit Strips Refill

The idea is simple enough but readings can vary wildly between two sticks (the two readings are taken close together to confirm a suspiciously high - or low - reading. Follow the instructions carefully - do not slide the stick into the slot - and read out of strong sunlight or use the light shield. Problems seem to be caused by a patchy colour density on the strips, the reading depending on the precise area the meter reads. When the readings have appeared inherently unlikely, I have gone back to the old methods which depend on the use of the human eye, and these have invariably proved the more believable. This is a pity. It is much faster than tablets and colour charts and potentially more accurate than test tapes using the eye and colour comparisons, which are as fast but less accurate than the tablets. I suspect the active reagents/indicator are not always distributed as evenly as they should be over the test area, which I would guess is a matter of quality control. Given the cost of the meter and bottles of strips, I would have expected better quality. You also have to watch the expiry date of the strips, which might be quite short if they have been at the retailers for some time.

Wie jedes Jahr wieder bin ich absolut zufrieden mit dem Produkt

Fast delivery, needing these strips after running low. Work perfectly with tester.

Conforme aux besoin de mon appareil de lecture automatique.

Trutest is an excellent product, that makes managing pool chemistry easy. Gives an actual number instead of leaving you guessing as to the colour. Unfortunately and inexplicably Aquachek has stop production. Amazon please help! You can use your volume purchasing to influence this company to keep this great product