1.Wiring system: nonpolar 2 BUS
2. Working voltage: 15-32V BUS pulse
3. Working current: standby current: 0.3mA; working current: 1mA
4,Operating environment: temperature: -10℃~+50℃       Relative humidity 95%(uncondensed)
5.Alarm indicator: red
6.Coding scheme: electronic encoder, with a code range of 1~200
7.shell material and color: ABS cream-coloured
8.carried standard: GB 4716-2005