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