On-Line Ph Controller 1.LCD display 2.100 ~ 240 VAC 50/60Hz 3.4 to 20mA ... , paper industry and food industry. The built-in dot matrix LCD can display pH values, mV value, temperature, alarm settings and time ... range0.00 ~ 14.00pH, -1999mV~+1999mV,-30°C~130°C.Display typeLCD.Display informationpH / ORP (mV), pH mV, temperature, proportion of 4 ...