The HANNA HI 711 Checker HC bridges the gap between simple chemical test kits & professional instrumentation. Chemical test kits are not very accurate & only give 5 to 10 points resolution while professional instrumentation can cost hundreds of dollars & can be time consuming to calibrate & maintain. The HANNA HI?711 Checker HC is accurate & affordable. This Checker HC portable handheld colorimeter
Features: a resolution of 0.01 ppm & ±0.03 ppm (mg/L) ±3% of reading accuracy. It also uses an EPA approved DPD method. The contoured style of the Checker HC fits in your palm & pocket perfectly & 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 711 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 Checker HC, press the button & read the results. It&8217;s that easy. Order Information: HI 711 Checker HC is supplied with sample cuvettes with caps (2), powder reagents for Total Chlorine (6), battery & instructions.