Model Number: DDSY283-S Brand Name: Holleyintl Key Specifications/Special Features: ApplicationThe DDSY283-S/DTSY541-Ssingle/three phase electronic IC card prepayment active energymeterrealizes the prepayment feature by IC card,with the load control and energy management.The meter completely complies with the relevant technical requirements of class 1.0single/three phase energy meter stipulated in international standard IEC 62053-21.It can accurately and directly measure 50Hz or 60Hz active energy consumption of the AC power grid, it can be installed in meter box for indoor or outdoor use.This meter has LED monitors which shows power.It has good reliability, light weight, and can be conveniently installed.Features

1. Payment use IC card prepaid automatic power-off when low credit.
2. Power—off alarm when electricity shortage, remind users to buy electricity timely
3. Register display the total power consumption
4. Overload alarm