The unit can also be converted into a wall sounder beacon with the simple addition of a Cap (SI/CAP2(WHT)). The sounder is Ingress Protection rated to IP21 and for internal use only. The unit is designed to fit to the Standard Base (YBN-R/3) or the Isolator Bases (YBO-R/SCI or YBN-R/3(SCI)) and can be fitted with any of the ESP Range of Sensors, Beacons or Remote Indicators.
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