Hanna Instruments Checker Total Chlorine Colorimeter

The HANNA HI 711 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-711 Checker HC is accurate and affordable. This Checker HC portable handheld colorimeter features a resolution of 0.01 ppm and ñ0.03 ppm (mg/L) ñ3% of reading accuracy.