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The Milwaukee tester will give results for a range from O to 2.5ppm, at a resolution down to .01ppm.
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A good, reliable phosphate test kit should be accessible to any serious reefer. We have found the Milwaukee MI412 Phosphate checker to be one of the most reliable test kits to measure phosphates. Excess amounts of phosphates (PO4) can actually inhibit coral growth and coloration. The most notable addition of phosphates added in a reef tank will be from the food you feed, and their is media out there to remove phosphates from the water in the tank like GFO. When running any type of phosphate removal media you should have a test kit to know that it is actually working and when to change out the media.
1x Mi412 Phosphate Photometer
100x Single packets of reagent
2x Glass curvettes
2x Curvette caps
1x 9v Battery
1x Scissors for reagents
1x Carry case
1x Cleaning kit
||0.00 to 2.50 mg/l PO4 (mg/l = ppm)
|Resolution Range|| 0.01 mg/l (mg/l = ppm)
|Accuracy Range|| ±0.04 mg/l @1.00 mg/l (mg/l = ppm)
|Method||adaptation of Ascorbic Acid method|
|Light Source||tungsten lamp|
|Light Detector||silicon photocell and 610 nm narrow band interference filter|
|Environment||0 to 50°C / 32 to 122°F; max RH 100%|
|Battery Type||1 x 9V (included)|
|Auto-off||after 10 minutes of non-use|
|Dimensions||192 x 104 x 52 mm|