... when over temperature and over current.-Set at most 5 groups power, load process automatically according to the setting ... measurement rangeAC 0~450V, Display Resolution: 0.1V, Precision: ±5‰Current measurement rangeAC 0~200A, Display Resolution: 0.1A, Precision ... KVA, Display resolution: 0.1KVA, Precision: ±1%Temperature measurement range-20~100°C,Display resolution: 1°C, precision:±1°CCooling ...