Description
Models 55 and 56 are resonating horns that produce sound by means of a diaphragm, which resonates a column of air. With greater output than a vibrating horn, the resonating horn can be used wherever a louder, more powerful alert is needed.
These projectors are designed to match the frequency of the vibrating diaphragm to produce a smooth tone. The housings are tapped for 1/2" conduit.
Models 55 and 56 have sufficient output to penetrate through high ambient noise levels and have a duty cycle of five minutes on, five minutes off.
- Model 55 - 24VAC and 120VAC
- Model 56 - 24VDC, 125VDC and 250VDC
- Model 55 produces 105 dBa @ 10' (115 dBa @ 1m)
- Model 56 produces 106 dBa @ 10' (116 dBa @ 1m)
- Corrosion resistant cast aluminum housing and spun brass projector
- Indoor/outdoor use
- Weatherproof, water- and dust-tight
- Swivel bracket included
- Type 3R enclosure
- Model 55-120-1 is UL Listed and CSA Certified
