... .C,V,mA .USB/RS485/RS232/Relay .144X144X180mm .CE Paperless Temperature Chart Recorder .Universal 16 inputs RTD,T.C,V,mA.USB/RS485 ... proffestional and experience manufacturer, we supply high performance and quality paperless recorder, temperature recorder, temperature and humidity recorder, paperless chart recorder, temeprature data logger KH300B: Universal Paperless Temperature Chart Recorder