Feature:
1.Measure and display the content of residual chlorine, adjustable range(0/2ppm�0/20ppm).
2.According to the chlorine value, the analog output is 4/20mA and the output range of the current is settable.
3.2 channels relay output: upper limit output and lower limit output
4.RS485 communication, standard MODBUS RTU communication protocol
5.Chlorine automatically control(current output control, pulse output control)
skype:XHautomation