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Extension cords have some potential risk in our general life.Extension Cord Alerter is a modular extension cord, you can extend it as you want.The Extension Cord Alerter has a supervise device on the front of it, which is set to supervise the power load status of the socket. Green light means safe, yellow light means saturation, and red light means overload, showing the detail information to user.
ZHAN,ZI-LIN LIN,LIANG-JYUN JHANG,JIA-YU Wayne HUANG