Honeywell 748LC Dual-Tone Siren 112dB
Overview
The Honeywell 748LC is a 112dB dual-tone siren designed for indoor or outdoor mounting in commercial security and alarm systems. It fits a standard double-gang electrical box and delivers steady and warble tone output without requiring disassembly during installation — a real time-saver on retrofit jobs where access is tight. The hinged case design lets you route wiring through the back channeled case before snapping the cover shut, eliminating on-site splicing and crimping.
Compatibility
The 748LC works with Honeywell security control panels and legacy burglar alarm systems that support 12V DC siren circuits. It is compatible with standard alarm control boards using dry relay or supervised siren output terminals. Verify your panel's siren voltage and current capacity before installation — the 748LC draws 550mA at 12VDC for full 112dB output, or 120mA at reduced 105dB level if your power budget is constrained.
Installation Notes
Mount the 748LC directly to a standard double-gang electrical box in corner or ceiling positions — no additional brackets or hardware needed. The snap-open hinged case cover eliminates disassembly, and the large wiring channel accommodates easy terminal block connections without soldering. The device is tamper-proof and weather-resistant, suitable for indoor or outdoor walls. Ensure adequate 12VDC supply capacity at the control panel to support 550mA peak draw; undersized supplies will limit output or trigger nuisance resets.
What's in the Box
- 1x Honeywell 748LC siren assembly
- 1x terminal strip
- 1x snap-on trim ring
