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.
Pairs well with our PID temperature controllers and electronic thermostats as a fault signal wired to an alarm relay output. It can also be housed in one of our PY Series control boxes for a self-contained panel-mounted alarm unit.
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 our MBZS012SE if washdown protection is needed.
Can I use this as a fault alarm on a temperature controller?
Yes — wire it to an alarm relay output on a PID controller or thermostat for an audible and visual high/low temperature warning.
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