MB Series Plastic with LED 12V AC/DC 22 mm Buzzer
The MBZS012S pairs a 90dB audible alert with a visual LED cue in one compact 22mm unit, running on 12V — a natural fit for off-grid, automotive, and low-voltage control systems where mains or 24V supplies aren't available. Its low 18mA draw wires directly into most 12V control circuits without extra hardware.
This is a one piece device suitable for a combined audible and visual alarm.
Operates on 12V and can be used for control systems, off-grid and automotive applications.
Annunciator, Indicator, Alarm for BMS, Control Panel, Process, PLC.
Technical Details
Frequently Asked Questions
Can I use this in an off-grid or automotive application?
Yes — its 12V AC/DC operation and low current draw make it well-suited to battery-powered, off-grid, and automotive alarm circuits, not just mains-fed control panels.
Is this suitable for washdown or outdoor mounting?
It's IP50 rated (dust-protected, not water-jet rated), so it's best suited to indoor or enclosed mounting rather than direct washdown exposure. Check EMAS's IP65-rated buzzer variants if washdown protection is needed.
What's the difference between this and the MBZS012SE?
Same 12V audible/visual alarm function, but the MBZS012SE is IP65 rated for washdown and outdoor-adjacent use, while this MBZS012S is IP50 for standard indoor mounting.
Can I wire this directly to a PLC or relay output?
Yes — at 12V AC/DC and 18mA draw, it's compatible with most low-voltage PLC or relay outputs without needing extra interposing hardware.
Industry Applications
- Off-grid & automotive systems — battery-powered audible/visual alarm signalling
- BMS & control panels — combined audible/visual annunciation for low-voltage systems
- Process & PLC systems — fault or alarm indication on 12V control circuits

