... .3%, alarming output function, Support K,E,J,T,N,B,R,S thermocouples, Dual display, Record function. DM6803A+ 4 1/2 ... alarming output function;2.Support K,E,J,T,N,B,R,S thermocouples;3.It may set cold temperature automatic saving ... : ±(0.4%+2°C)Input resistance 1GΩ adoptsITS-90thermometric scale S-20~1760°C1°CB400~1800°C1°C400°C~800°C ...