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Easier to use and more accurate than chemical test kits.The HI 761 from Hanna Instruments uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample. Auto shut off after 10 minutes of non-use.
Dedicated to a single parameter
Two sample cuvettes and caps. Six packets of reagents for total chlorine ultra-low range
Small Size, Big Convenience
Weighing just 64 g (2.25 oz.), the Checker®HC easily fits into the palm of your hand or pocket. Use for quick and accurate on the spot analysis. Single button operation: Zero and Measure Operated by a single AAA battery.
- Range:0 to 500 ppb
- Resolution: 1 ppb
- Measurement Method: Colormetric
- Accuracy: ±5 ppb ±5% of reading
- Light Source:Photodiode @525 nm
- Light Detector: Silicon photocell
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nice checker By moses on 5/31/2014moses would recommend this product to a friendIt seems to work really good I just wish you could use a liquid instead of the powder reagent < its a pain to get it all out. It shows that the carbon filters that I bought for chloramines from BRS takes most but not all out of the system still leaving 40 ppb.