1.Power meter DSM228-02 2.LCD or cyclometer display 3 ... , small volume, light weight, specious appearance, etc..The meter is widely used in office buildings, shopping malls, residences, ... nonpolarity),complying with standard IEC62053-21.♦Two LED instructions power supply state,signal of energy impulse.♦Single direction measures ... We can make according to your detailed requirements. Power meter DSM228-02