..... these popular brand new walled mounted Electronic electricity METERS make ideal reliable sub check meters eg in SUBLETS , workshops and offices, holiday lets ,statics ,marinas etc and or when you simply want to monitor /check the cost of electricity used in a particular situation .....furthermore the meters offer enhanced class 1.0 accuracy with the well proven EASY READ numbered kwh register display ..a conventional designed solid state kwh meter with LLNN terminal notation encased in a strong attractive phenolic cover and case physical size 14 x 11 x 5 cm ....single phase for standard 230/240 volt supply and importantly max rated at 100 amp ...50 Hz 800 imp / KWH... meter complies with IEC 62052-11 and IEC 62053-21 ..great design and accuracy .. ... a top value item ...... a meter you can count on...note when buying electronic meters NEW is always best for reliability /accuracy and longer working life ........so no surprise Meterman likes this one... and perhaps more importantly EBAYERS judging by feedback received ....