Bells / Sirens / Screamers

Bells, Sirens & Screamers: Audible and Visual Alerts for Industrial Applications

Bells, sirens and screamers provide the audible warning needed when equipment status, alarms or emergency conditions must be noticed quickly. This range covers industrial bells, electronic sirens, horns, sounders and combined sound-and-light devices for electrical panels, machinery, buildings and security systems; for example, the 119dB selectable industrial horn is suited to applications where a high-output audible signal is required.

What's in This Range

• 240V AC red warning bell — an 8-inch bell producing a 95dB sound output for prominent audible warning applications.
• 12V electrical bell — a compact 85dB bell for lower-voltage signalling requirements.
• 230V AC two-tone siren — selectable tones with IP54 protection for audible alerting installations.
• 110dB multisound alarm siren — an IP65 siren for demanding alarm and signalling applications.
• 126dB electronic horn — high-output audible signalling with 45 selectable tones and IP66 protection.
• 103dB LED sounder beacon — combines audible warning with LED indication in a compact panel format.
• 120dB top-hat screamer — a high-output 12–15V DC alarm device with a warble tone.
• 105dB LED beacon sounder — provides audible signalling with 64 tones and IP66 protection across a 10–60V DC supply range.

Who Uses This

These devices are commonly considered during machinery installations, plant upgrades, switchboard work, warehouse projects, commercial fit-outs and security alarm installations. Panel-mounted buzzers and sounders suit local indication, while larger bells, horns and sirens provide more noticeable warnings across noisy areas. Combined sound-and-light units are useful where an audible signal alone may not be enough to attract attention.

Bells, Sirens & Screamers — Common Questions

How do I choose the right sound output?

Start with the environment and the distance at which the warning must be heard. Larger warning bells and high-output electronic horns can suit noisy industrial areas, while an 145dB industrial motor siren is intended for substantially louder signalling requirements.

What supply voltage should an audible warning device have?

The device supply needs to match the control circuit or available power source. The range includes low-voltage 12V and 24V devices as well as 110–240V AC options, so checking the required operating voltage before selection is essential; a 110–240V AC voice sounder alarm suits installations requiring a broader AC supply range.

When is a sounder with a beacon preferable to an audible device alone?

A combined device can provide two separate warning cues, which is useful in areas with high background noise or where visual status indication is important. LED sounder beacons and horn-beacon units combine audible output with visible signalling, while IP-rated models can be considered for more exposed installation environments.

Why Choose SCHNAP

• Choose from industrial bells and warning devices covering different sound levels, including 95dB bells and higher-output electronic horns for demanding applications.
• Options include multiple supply ranges, from 12V and 24V DC or AC devices through to 110–240V AC equipment, helping match the signalling device to the control system.
• The range includes IP54, IP65 and IP66 alerting products, alongside established industrial brands such as Allen-Bradley, Klaxon and Clipsal.

For help selecting audible warning equipment, see our guide to sounder and beacon selection and our guidance on warning sounder selection. SCHNAP also offers Australia-wide delivery to help keep electrical and industrial projects moving.