DB3B Sounders Range Up To 122dB

The DB3B is a high power explosionproof sounder, introduced as areplacement for the current DB3 withimproved functionality andperformance.Certified for use in a wide range oftemperatures from -55°C to +85°Cthe Ex enclosure is manufacturedfrom GRP with a ruggedthermoplastic flare providing acorrosion free and aestheticallypleasing product.Capable of producing 122dB @ 1m
and with a range of pre-recordedtones, the DB3B includes an integralvolume control which isideal when a lower output is required.The unit is provided with versatilecontrol options allowing compatibility with a wide range of control methods and PLCs. The standard DC unit provides 3 tone stages, each stage has 28 tones available which can be independently selected. The unit can be controlled by reversing the polarity of the power supply (2 stage) or providing a common negative and switching between multiple positive supplies.