12v alarm siren
12v alarm siren for sale on Ireland's largest auction and classifieds sites
12v 120db mini loud wired - 12v, - £5.19
Compact yet highly • Effective instantly notifies • You deters intruders - Free postage - New and Used
Compact yet highly • Effective instantly notifies • You deters intruders - Free postage - New and Used
12v 120db battery - 120db, - £13.99
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Heavy duty reversing - reversing, alarm - £14.99
48v heavy duty • Reversing alarmsuitable any • Systemminimum output 102db - Free postage - New and Used
48v heavy duty • Reversing alarmsuitable any • Systemminimum output 102db - Free postage - New and Used
105db reversing horn back - ⁺, - £10.83
Sound level 105db • Produces powerful beeping • That 105 decibel - Free postage - New and Used
Sound level 105db • Produces powerful beeping • That 105 decibel - Free postage - New and Used
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100w 12v tone sound - 12v, car - £8.00
Siren sounds car • Speaker can make • Alarm loud clear - Free postage - New and Used
Siren sounds car • Speaker can make • Alarm loud clear - Free postage - New and Used
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48 listings · from £3.99 · avg £13.82
Browse 48 12v alarm siren listings currently in our index. Prices range from £3.99 to £102.6, with an average of £13.82. Whether you are hunting for a bargain or looking for a top-spec model, the selection below covers all price points — new, used and refurbished. More about 12v alarm siren →
12v 120db mini - mini, loud - £5.85
Sound index 120db • 120dbs this siren • Will not only - Free postage - New and Used
Sound index 120db • 120dbs this siren • Will not only - Free postage - New and Used
Sound 12v 100w loud - 7-sound, - £10.99
Cigarette lighter • Horn has high • Cost effectiveness microphone - Free postage - New and Used
Cigarette lighter • Horn has high • Cost effectiveness microphone - Free postage - New and Used
Universal 12v motor driven air - universal, - £6.99
Air raid siren • Multi tone claxon • Horns 12v 110 - Free postage - New and Used
Air raid siren • Multi tone claxon • Horns 12v 110 - Free postage - New and Used
100w 12v tone sound car - 7, - £11.00
Siren sounds car • Speaker can make • Alarm loud clear - Free postage - New and Used
Siren sounds car • Speaker can make • Alarm loud clear - Free postage - New and Used
Wired loud 12v mini alarm - wired, - £6.95
- Free postage - New and Used
- Free postage - New and Used
100w 12v tone sound car - 100w, - £10.55
Car siren speaker • You can talk • Other people this - Free postage - New and Used
Car siren speaker • You can talk • Other people this - Free postage - New and Used
Universal 12v motor driven air - universal, - £7.49
Motor driven air • Siren horn speaker • Application car motorcycle - Free postage - New and Used
Motor driven air • Siren horn speaker • Application car motorcycle - Free postage - New and Used
12v led security alarm - dc, - £5.01
Strobe rate 90s • Minute 12v led • Anti theft alarm - Free postage - New and Used
Strobe rate 90s • Minute 12v led • Anti theft alarm - Free postage - New and Used
Sir1tbb01 12v 120db - 12v, battery - £13.59
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
12v motorcycle anti - 12v, horn - £19.99
Powerful alarm output • Loud 115 120db • Six tone siren - Free postage - New and Used
Powerful alarm output • Loud 115 120db • Six tone siren - Free postage - New and Used
12v 120db loud - dc, wired - £13.59
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Outdoor siren indoor - outdoor, siren, - £13.00
Whopping 110db output • This siren enough • Scare off any - Free postage - New and Used
Whopping 110db output • This siren enough • Scare off any - Free postage - New and Used
12v 130db wireless electronic - 12v, - £14.98
Wireless electronic siren • Sound level 130db • Simple2 wire connection - Free postage - New and Used
Wireless electronic siren • Sound level 130db • Simple2 wire connection - Free postage - New and Used
12v 120db mini loud - 120db, - £4.99
- Free postage - New and Used
- Free postage - New and Used
Lynteck sound bomb - bomb, sb-11 - £6.50
Lynteck sound bomb • Powerful quad piezo • Siren sounder provide - Free postage - New and Used
Lynteck sound bomb • Powerful quad piezo • Siren sounder provide - Free postage - New and Used
Cqr wired siren white and - cqr, - £20.43
Cqr wired siren • White blue unit • Indoor use powered - Free postage - New and Used
Cqr wired siren • White blue unit • Indoor use powered - Free postage - New and Used
Piezo siren 12v - piezo, - £7.19
High output piezo • Siren tones 200mm • Wire leads suitable - Free postage - New and Used
High output piezo • Siren tones 200mm • Wire leads suitable - Free postage - New and Used
Wired loud alarm - loud, 110db - £10.39
12v two tone • Siren indoor outdoor • 115db super loud - Free postage - New and Used
12v two tone • Siren indoor outdoor • 115db super loud - Free postage - New and Used
Wired loud alarm horn 110db - alarm, - £8.99
626 siren variety • Installation options are • Flexible convenient widely - Free postage - New and Used
626 siren variety • Installation options are • Flexible convenient widely - Free postage - New and Used
Outdoor alarm siren and - alarm, - £34.00
Two tone siren • This wall mounted • Blue strobe connecting - Free postage - New and Used
Two tone siren • This wall mounted • Blue strobe connecting - Free postage - New and Used
12v 30w car truck - 12v, motorcycle - £7.99
Sound level 105db • Power 30w item • Type siren horns - Free postage - New and Used
Sound level 105db • Power 30w item • Type siren horns - Free postage - New and Used
Texecom klaxon slm 0001 master - texecom, - £102.60
Texecom klaxon slm • 0001 master blaster • 127db alarm siren - Free postage - New and Used
Texecom klaxon slm • 0001 master blaster • 127db alarm siren - Free postage - New and Used
Wired loud alarm horn - wired, - £10.66
Wired loud alarm • Security 12v outdoor • Exterior sirena alarma - Free postage - New and Used
Wired loud alarm • Security 12v outdoor • Exterior sirena alarma - Free postage - New and Used
Piezo siren 12v sounder - siren, - £12.02
105db watts black • Piezo siren 12v • 20cm leads set - Free postage - New and Used
105db watts black • Piezo siren 12v • 20cm leads set - Free postage - New and Used
Sound 12v loud car - 7-sound, - £19.70
Car siren speaker • Item type multi • Tone claxon horns - Free postage - New and Used
Car siren speaker • Item type multi • Tone claxon horns - Free postage - New and Used
1pcs universal 12v battery - 12v, - £13.49
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Lynteck 814 12v electronic - tk-814, - £42.30
Electronic sounder horn • Lynteck 814 12v • High quality security - Free postage - New and Used
Electronic sounder horn • Lynteck 814 12v • High quality security - Free postage - New and Used
12v sound loud - 12v, van - £10.99
Siren sounds car • Speaker can make • Alarm loud clear - Free postage - New and Used
Siren sounds car • Speaker can make • Alarm loud clear - Free postage - New and Used
New warning strobe siren - new, - £4.59
Alarm security system • This mini wired • Strobe siren used - Free postage - New and Used
Alarm security system • This mini wired • Strobe siren used - Free postage - New and Used
12v 120db mini - wired, horn - £5.79
Sound index 120db • 120dbs this siren • Will not only - Free postage - New and Used
Sound index 120db • 120dbs this siren • Will not only - Free postage - New and Used
Car alarm siren horn - siren, - £10.69
Loud clear sound • Car siren handy • Its prolonged functioning - Free postage - New and Used
Loud clear sound • Car siren handy • Its prolonged functioning - Free postage - New and Used
Car truck reverse - truck, - £11.99
Prolonged functioning beyond • This may cause • Overheating item type - Free postage - New and Used
Prolonged functioning beyond • This may cause • Overheating item type - Free postage - New and Used
Universal 12v 120db battery - 120db, - £12.82
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
12v 120db battery backup siren - 12v, - £13.49
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
120db dc12v mini loud wired - 120db, - £13.49
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
12v 120db mini - 120db, horn - £5.94
Sound index 120db • 120dbs this siren • Will not only - Free postage - New and Used
Sound index 120db • 120dbs this siren • Will not only - Free postage - New and Used
12v car alarm horn loud - car, - £3.99
There are many • Bargains had new • Unused opened photograph - Free postage - New and Used
There are many • Bargains had new • Unused opened photograph - Free postage - New and Used
12v battery backup siren for - battery, - £16.95
Trigger sir1tbb01 high • Quality battery backup • Siren adds more - Free postage - New and Used
Trigger sir1tbb01 high • Quality battery backup • Siren adds more - Free postage - New and Used
12v battery backup siren - 12v, horn - £13.29
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
220v wired alarm - alarm, strobe - £4.79
Alarm security system • This mini wired • Strobe siren used - Free postage - New and Used
Alarm security system • This mini wired • Strobe siren used - Free postage - New and Used
Tone siren emergency alarm - emergency, - £13.19
Item type siren • Horns sound car • Constructed from premium - Free postage - New and Used
Item type siren • Horns sound car • Constructed from premium - Free postage - New and Used
Dc12v 120db mini loud - mini, wired - £13.49
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Black battery backup siren - black, - £13.49
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
Fit universal fitting • Any road vehicles • Siren compatible most - Free postage - New and Used
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Everything you need to know about 12v alarm siren
Whether you are looking for a brand-new or second-hand 12v alarm siren, eBay offers one of the largest selections available online. With 48 active listings at the time of this page's last update, you have plenty of choice across different conditions, sellers and price points. The cheapest option currently starts at £3.99, while premium listings can reach £102.6 — giving you a wide budget spread to work with. The average price of £13.82 can serve as a useful benchmark: listings below this tend to be used or auction-style, while those above often include extra accessories, warranties, or are sold by professional sellers with high feedback scores. Always check the seller's feedback rating and return policy before committing to a purchase. If you need the item quickly, filter by "Buy It Now" to avoid the uncertainty of auctions. For used items, look closely at the condition description and photos — terms like "good", "very good" and "like new" can mean very different things depending on the seller.