Pen type residual chlorine meterDetailed product description：

The CL200 pen type residual chlorine meter is widely used in various water quality analysis applications, such as drinking water, cooling tower water, swimming pool water, industrial water quality control, food processing, and wastewater treatment, etc

residual chlorine	measurement range resolution accuracy Temperature compensation range	0.01~10.00ppm (total residual chlorine) 0.01ppm ± 10% reading value, ± 0.01ppm (0.05~5.00ppm) (0~60) ℃ (automatic)
temperature	measurement range resolution accuracy	（-5 ~ 90）℃ 0.1℃ （-5 ~ 50）℃/±0.1℃，（50~ 90）℃/±3℃
Other technical parameters	Data storage display screen Battery low voltage display PH electrode failure display Power supply Dimensions and Weight	15 groups Line drawing multifunctional LCD display screen The LCD screen displays the "BAT" character The LCD screen flashes the "RENEW" character Four CR2032 lithium batteries (36×173×41)mm/110g
working conditions	Ambient temperature relative humidity IP rating	-5~50 ℃ (0.01 level) ≤80%RH IP57 dustproof and waterproof

CL200 pen type residual chlorine meter