2PCS 12V DC Black Mini Piezo Alarm Siren 110dB Insurance Safes Anti-Theft Alarm High-Decibel Buzzer for Car

Used this in my older harley davidson that came with alarm but no siren. Item fit in the area i needed perfect Only flaw is the wires need to be a bit thicker( better guage)

Makes an excellent sump pump fail alarm

Devices are continuous sounding, not intermittent or on/off as advertised.

That's a cool yet pretty annoying thing! Does it's job very well! If you want to alert or annoy someone, buy with confidence!!!

Wired one of these into a very tight control box on my boat when the old buzzer style alarm from 1976 quit working from corroded mechanical contacts. The small footprint made it easy to fit it into the tight space. Easy to wire into the 12v system and loud enough to hear easily with the motor running.

Bought the twin pack thinking 2 has to be better than 1. Ended up just installing the one on my bike. Super loud and definitely draws attention when it goes off.

I ordered this set and only one was actually working when I tested them out.

Works well, loud