Vibrating horns produce a continuous alarm horn sound as long as power is applied, screw terminal wiring input, indoor use, (Outdoor Use order Box WBB-S, or WBB-R Red), 120VAC .16A, FEATURES: Tamper resistant construction, easy installation, mounts on standard 4" electrical box (not included),or optional Weather proof boxes above. Efficient operation, 4" square, 95dB@10', Optional Weather proof boxes have surface mount tabs, and the WBB-R Red has 2 of a 1/2" threaded pipe opening 180 degrees apart which can accommodate pass through wiring needs, or be used to mount a visual signal for instance above the 31T horn. (see our visual signals for options, or contact us for assistance with selection).UL Listed.
The horn heard around the world.  An economical audible horn for your signaling needs from sports scoreboards to machine start up and start/stop work systems...

• Voltage available: 120 VAC 
• Operating Current: .16A
• Temperature Range: Not Available
• Listings: U.L.
• Mounting: mounts on standard 4" electrical box
• Indoor Use
• Audible Output: 95 dB @10'