Features：

1. Large display, standard 485 communication, with online and offline alarm, 

98*98*130mm meter size, 92.5*92.5mm hole size,3.0 inch large screen display.

2. Historical curve: The residual chlorine measurement data can be stored automatically every 5 minutes, 

and the residual chlorine value can be stored continuously for a month. Provide standard solution calibration and field calibration.

3. Built-in various measurement functions, one machine with multiple functions, 

meeting the requirements of various measurement standards.

4. The design of the whole machine is waterproof and dustproof,and the back cover of the connection terminal is 

added to extend the service life in harsh environments.

5. Panel/wall/pipe installation, three options are available to meet various industrial site installation requirements.