Hanna Checker Iron Tester
-Easier to use and more accurate than chemical test kits-
Â±0.04 ppm Â±2% of reading accuracy
0.01 ppm (mg/L) resolution (500 points)
Large, easy to read digits
Auto shut off
The HANNA HI 721 Checker HC bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits are not very accurate and only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars and can be time consuming to calibrate and maintain. The HANNA HI 721 CheckerÂ®HC is accurate and affordable with immediate results.
The new HI 721 Checker HC portable handheld colorimeter features a resolution of 0.01 ppm (500 points) and Â±0.04 ppm Â±2% of reading accuracy. The HI 721 CheckerÂ®HC uses an adaptation of Standard Method 315 B.
The contoured style of this Checker HC fits in your palm and pocket perfectly and the large LCD is easy to read. The auto shut-off feature assures the battery life will not be drained if you forget to turn it off.
The HI 721 Checker HC is extremely simple to use. First, zero the instrument with your water sample. Next, add the reagent. Last, place the vial into the HI 721 CheckerÂ®HC, press the button and read the results. Its that easy.