เครื่องโฟโตมิเตอร์-เหล็ก (Iron Checker 0.00-5.00 ppm.)
Iron Range: 0.00 to 5.00 ppm(mg/L)
Easier to use and more accurate than chemical test kits
Dedicated to a single parameter
Small Size, Big Convenience
ACCURATE AND AFFORDABLE IRON MEASUREMENT
The HANNA HI 721 Checker®HC is accurate and affordable with immediate results. The new HI 721 Checker®HC portable handheld colorimeter features a resolution of 0.01 ppm (250 points) and 2% ±0.04 ppm accuracy of reading. The HI 721 Checker®HC uses an adaptation of Standard Method 3500-Fe 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 Checker®HC, press the button and read the results. It’s that easy.