... Various dimensions selectable YUDIAN AI-500 intelligent digital temperature indicator Suitable for measuring and displaying temperature, pressure, flow, ... ): 250VAC/2A or 30VDC/1ALinear current : can transmitter process valueGeneral specificationsVoltage: support AC85-265V, 50/60Hz or DC24V ... ?YUDIAN is of over 20 years experience of industrial process control field. CE, UL, ISO9001 qualified, prompt ...