Product Description KH300AG intelligent mini color paperless temperature recorder, is high quality and poplar model, 96*96*85mm, up to 6 channels, advanced technology, high quality and performance, high accuracy, photoelectric isolated, universal use, used to monitor, record, analyze the processes in kinds of industrial application. Application Sewage treatment, Marine, Medical University lab, Petroleum, Aviation, Chemical, Building, Pharmaceutical, Cement, Metallurgy, Food, Paper, Electricit, Nulear power etc. Features .8MB built in memory for long time memory .Photoelectrical isolated input: T.C., RTD, DC current, DC voltage. .Turn off and exit screen automatically if non-operation .Measuring data can be downloaded by USB flash drive, plug and play, easy to operation. .RS485 MODBUS-RTU .RS232 printing port to mini printer Specification Input signal • Thermocouple: K,S,E,J,T,B,N,R, WRe526,WRe325 • RTD: PT100, CU50,CU100 • Linear voltage: 0-5V,1-5V • Linear current: 0-10mA,4-20mA • Frequency input: 0-5KHZ, one channel • Specials: 0-20mV,0-60mV,0-100mV,0-500mV Output Module • 4-20mA retransmission output • Relay alarm output • RS485 communication port • 5V/12V/24VDC power supply for sensor • RS232 printing port • USB port Accuracy :+-(0.2%FS+1)digit Power supply:100-240VAC;24VDC Display:3.5inch,320*240 TFT color LCD Screensaver protection Screensaver time setting for LCD background light auto off when no any operation, in order to decrease the power consumption. Power-off protection FLASH MEMORY can keep the parameters and history data, it can memorize forever if power off. Hardware clock built in for still accuracy running. Environmental temperature:0-50¡ãC Environmental humidity:0-85%RH