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covers alarm / manhole covers

covers alarm
covers alarm

When the well cover is lost,automatic alarm to remind people to have a hole, avoid pedestrians fall.Sound during the day time to remind people,and at night can emit light to remind people of.

University

Zhejiang University

Zhejiang University
SCICOO WORKS
Ningbo, China

Design

Zhejiang University

Zhejiang University
SCICOO WORKS
Ningbo, China

Sang Yilei,Zhao Xiaoliang,Xue Mengru,Zhang Litao