Digital residual chlorine meter Checker CL Measurement temperature range (℃): 0℃ to 40℃ Width (mm): 87 Height (mm): 60 Depth (mm): 160 Measurement range Temperature (℃): 0℃ to 40℃ Measurement residual chlorine concentration range (ppm): 0℃ to 2 准确性:±(3% + 1位)或测量值的±0.05ppm