Reagents for calcium and magnesium HR, oxalate (Ca) and calmagite (Mg) methods
Range: 0 to 400 mg/L (ca)
0 to 150 mg/L (Mg)
Order Information:
Reagent kit for 100 tests (50 Ca and 50 Mg)
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The HI 761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.
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Range 0 - 200 ppb | ascorbic acid method | Resolution 1 ppb
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Range 0 - 150 ppm | ferrous sulfate method | Resolution 1ppm
All Product
Range 0 - 300 ppm in salt water | Colorimetric Method | Resolution 1 ppm
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Range 0.00 - 9.99 ppm NH3-N | Nessler Method | 0.01ppm resolution
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Range 0:00 to 2:00 ppm | ASTM D859 Method | 0.01ppm resolution
All Product
The HI 771 Checker®HC is a simple, accurate, and cost effective way to measure ultra-high ranges of chlorine. Designed as a more accurate alternative to chemical test kits, the HI 771 provides quick, accurate results in four easy steps.
The HI 775 Checker®HC is a simple, accurate, and cost effective way to measure alkalinity. Designed as a more accurate alternative to chemical test kits, the HI 775 provides quick, accurate results in four easy steps.
081-855-1842
02-541-4199
HI3811 CTK Alkalinity 
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HI700 Checker HC ® - Ammonia, LR 
