dem111 three phase max. demand watt-hour meter is a kind of mechanism electronic integrative new-style watt-hour meter with max demand measuring function which is designed and manufactured by our company and developed for adapting electric power line user load control demand. dem111 three phase max. demand watt-hour meter is suitable for measuring rated frequency 50hz single phase ac active energy electric energy consumption. its technical performance are completely conform to national standard gb/t15283-94 and international standard iec60521. function and features: 1. infrared remote controller programming setup, distinguished by code. 2. the data is preserved forever if power is interrupted, the spare batteries lose low power and can't be protected. 3. it has two kinds of max demand measuring ways: slide window way and block way. 4. the direction of electric power can be distinguished automatically, and false impulse won't be input. 5. may choose long-distance impulse interface and realize collecting transcription meter. watt hour meter, watt hour meters, kilowatt hour meter, kilowatt hour meters, kilowatt-hour meter, kilowatt-hour meters, kwhmeter, kwh meters, electricity meter, electricity meters, electric meter, electric meters, electronic meter, electronic meters, electrical meter, electrical meters, kwhmeters, kwh-meter, electric energy meter, billing meter, static watt hour meter, mechanical kwh meters, watthour power meter, ac kilowatt-hour meter, mechanical kwh meter, mechanical energy meter, single phase mechanical kwh meter, three phase mechanical kwh meter, electro-mechanical kwh meter, prepaid kwh meter, prepayment meter, electricity meters with prepaid chip cards, multi meter, single phase electronic prepayment watt-hour meter, china meter, top-quality electricity meters, din rail kwh meters, din rail watt-hour meter, din rail energy meter, din-rail electronic watt-hour meter, din rail mounted kwh meters, single phase din rail watt-hour meter, single phase din rail kwh meters, three phase din rail kwh meter, three phase electronic kwh electricity meters, single phase electronic kwh electricity meters, din mount single-phase class 1 kilowatt hour meter, din mount three-phase class 1 kilowatt hour meter, din rail mount 1 module single phase kilowatt hour meter