颜色 Colour: 亚光黑 Dull black
外壳材质 Shell material:ABS
报警声压级 Alarm sound level: ≧ 75dB
防护等级IP rating:IP22
当发信器和收信器不同步时，发出错向报警。
When transmitter and receiver are not synchronousitwill send out wrong-way alarm.
hy1993@hzhuayan.com
0571-82695169 / 82695181