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Your cart is empty.The HANNA HI 711 Checker HC bridges the gap between simple chemical test kits and professional instrumentation.
Carlos T.
Reviewed in the United States on December 27, 2023
Works as intended. I have a salt chlorinator this helps keep adjust it to get the Chlorine under 2PPM. If you have too much Chlorine, it will error out since it it reads a maximum of 3.5 PPM. If it errors out dilute the test sample with 50% bottled water and multiply by 2 the test result. Nice accurate gadget.
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