Product Description KH300AG intelligent mini color paperless temperature recorder, is high quality and poplar model, ... operation. .RS485 MODBUS-RTU .RS232 printing port to mini printer Specification Input signal • Thermocouple: K,S,E ... as 1,2,3...3600second flexibly in the recorder E.G.: when the ordered channel number is ... , and the record interval time set in recorder is 60s, it can record 450days (45*60 ...