μp-based digital panel meter, 4-DGT LED indicator, for current, voltage, temper- ature, resistance, rate, fre- quency, speed and period measurements. Measuring ranges and functions easily programmable from the key- pad or from the PC by means of optional UdmSoft software. UDM40 includes storage min-max functions and double level protection password. Housing for panel mounting with front protec- tion degree: IP67, NEMA12, NEMA4x "Indoor use only".