... : +-0.03PH,+-3mV 3.Power supply:DC24V portable ph meter PHG series of two-wire industrial ph sensor PHG-200 ... display and transmission instruments. The PHG-200 transmitter is for online continuous detection of the solution's acid, alkalinity. It's ... PLC, industrial computer, controller, data logger or touch screen for online moniter and control. Dual high-impedance differential amplifier, strong anti ...