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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)
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