Accept input RTD, Thermocouple, Voltage , Current Process � Temperature , Pressure, Humidity ,Level Flow,Co2, Air velocity, Diff pressure etc � Optional for with and with out Display Also available single pen and Dual Pen Operating Voltage 110 VAC or 230 VAC Chart speed 8 24168 hours ( shift DailyWeekly) Chart Size 150mm or 300 mm , pen red and blue External power supply for transmitter optional Cutout size : 225X225mm(150mm) & 372X417 mm