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12v alarm siren

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Home / Vehicle Parts & Accessories / 12v alarm siren refurbished & used for sale | For Sale UK
100w 12v tone sound - 12v,

100w 12v tone sound - 12v,

£8.00 · Buy It Now

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12v battery backup siren - 12v, horn

12v battery backup siren - 12v, horn

£13.99 · Buy It Now

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12v tone siren - 12v,

12v tone siren - 12v,

£10.69 · Buy It Now

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120db car battery backup - car,

120db car battery backup - car,

£13.49 · Buy It Now

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12v battery backup - 12v, siren

12v battery backup - 12v, siren

£14.95 · Buy It Now

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2pcs 12v piezo - 2pcs, alarm

2pcs 12v piezo - 2pcs, alarm

£3.09 · Buy It Now

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Wired loud 12v mini - wired, alarm

Wired loud 12v mini - wired, alarm

£6.95 · Buy It Now

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100w 12v tone sound - 12v,

100w 12v tone sound - 12v,

£10.88 · Buy It Now

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Universal 12v motor driven air - universal,

Universal 12v motor driven air - universal,

£7.40 · Buy It Now

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12v siren alarm dual - siren,

12v siren alarm dual - siren,

£12.99 · Buy It Now

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Sound 12v 100w loud car - 7-sound,

Sound 12v 100w loud car - 7-sound,

£10.95 · Buy It Now

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12v led security alarm - led,

12v led security alarm - led,

£5.00 · Buy It Now

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Universal 12v motor - motor, driven

Universal 12v motor - motor, driven

£7.49 · Buy It Now

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Heavy duty reversing alarm - reversing,

Heavy duty reversing alarm - reversing,

£14.99 · Buy It Now

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12v car warning alarm battery - car,

12v car warning alarm battery - car,

£13.49 · Buy It Now

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Wired loud alarm horn - wired,

Wired loud alarm horn - wired,

£10.39 · Buy It Now

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12v 120db mini - 120db, loud

12v 120db mini - 120db, loud

£5.95 · Buy It Now

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Wired strobe siren 220v - , 12/220v

Wired strobe siren 220v - , 12/220v

£5.49 · Buy It Now

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12v 120db mini loud - 120db,

12v 120db mini loud - 120db,

£3.60 · Buy It Now

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2pcs 12v piezo - 12v, alarm

2pcs 12v piezo - 12v, alarm

£3.95 · Buy It Now

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100w 12v car - fire, alarm

100w 12v car - fire, alarm

£11.00 · Buy It Now

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Wired strobe siren 120db - 120db, sound

Wired strobe siren 120db - 120db, sound

£4.42 · Buy It Now

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12v 120db mini - dc,

12v 120db mini - dc,

£3.54 · Buy It Now

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Outdoor alarm siren and - outdoor,

Outdoor alarm siren and - outdoor,

£34.00 · Buy It Now

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Car electronic alarm - electronic, dc

Car electronic alarm - electronic, dc

£10.44 · Buy It Now

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12v led security alarm - 12v,

12v led security alarm - 12v,

£5.19 · Buy It Now

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100w 12v tone sound - 7, car

100w 12v tone sound - 7, car

£11.00 · Buy It Now

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12v 120db mini loud wired - loud,

12v 120db mini loud wired - loud,

£3.50 · Buy It Now

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Universal 12v 120db battery - 12v,

Universal 12v 120db battery - 12v,

£13.49 · Buy It Now

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20pcs diy 12v electronic - diy,

20pcs diy 12v electronic - diy,

£75.99 · Buy It Now

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Dc12v 120db mini - dc12v,

Dc12v 120db mini - dc12v,

£13.49 · Buy It Now

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120db battery backup - backup, siren

120db battery backup - backup, siren

£13.59 · Buy It Now

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New car alarm - new,

New car alarm - new,

£8.54 · Buy It Now

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Wired loud alarm horn - loud,

Wired loud alarm horn - loud,

£10.99 · Buy It Now

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12v 120db mini loud wired - dc,

12v 120db mini loud wired - dc,

£3.97 · Buy It Now

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Hella 3al 922 000 - hella, 000-961

Hella 3al 922 000 - hella, 000-961

£12.51 · Buy It Now

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Electronic buzzer alarm - electronic,

Electronic buzzer alarm - electronic,

£9.94 · Buy It Now

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Car reverse siren horn backup - reverse,

Car reverse siren horn backup - reverse,

£8.97 · Buy It Now

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Universal 12v 120db - 120db, battery

Universal 12v 120db - 120db, battery

£13.59 · Buy It Now

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Sound 12v loud car - 12v,

Sound 12v loud car - 12v,

£21.76 · Buy It Now

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12v 120db mini loud - mini, wired

12v 120db mini loud - mini, wired

£33.47 · Buy It Now

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12v sound loud - 12v, car

12v sound loud - 12v, car

£10.99 · Buy It Now

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Outdoor alarm siren and - alarm,

Outdoor alarm siren and - alarm,

£32.10 · Buy It Now

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Sound tone loud vip - tone,

Sound tone loud vip - tone,

£11.00 · Buy It Now

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12v led security alarm - led,

12v led security alarm - led,

£4.89 · Buy It Now

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100w 12v tone sound - 100w, car

100w 12v tone sound - 100w, car

£10.95 · Buy It Now

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3am 922 000 971 hella - 3am,

3am 922 000 971 hella - 3am,

£19.99 · Buy It Now

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105db backup beeper - 105db,

105db backup beeper - 105db,

£10.94 · Buy It Now

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Universal 12v motor driven air - 12v,

Universal 12v motor driven air - 12v,

£9.12 · Buy It Now

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12v 24v 120db alarm - 120db, siren

12v 24v 120db alarm - 120db, siren

£13.59 · Buy It Now

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Siren 6tone for car - 6tone, alarm

Siren 6tone for car - 6tone, alarm

£14.95 · Buy It Now

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Siren tone for - siren, car

Siren tone for - siren, car

£13.95 · Buy It Now

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Miniature piezo siren 12v - siren,

Miniature piezo siren 12v - siren,

£5.49 · Buy It Now

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Replacement 12v adaptor - 12v, ac-dc

Replacement 12v adaptor - 12v, ac-dc

£11.49 · Buy It Now

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Car truck reverse warning - car,

Car truck reverse warning - car,

£12.78 · Buy It Now

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Clifford viper 515esp - clifford/viper,

Clifford viper 515esp - clifford/viper,

£52.70 · Buy It Now

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Outdoor siren indoor - siren,,

Outdoor siren indoor - siren,,

£13.00 · Buy It Now

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100w sound 12v car alarm - 12v,

100w sound 12v car alarm - 12v,

£13.69 · Buy It Now

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120db car vehicle alarm - 120db, 12v

120db car vehicle alarm - 120db, 12v

£11.00 · Buy It Now

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12v high water level - ,

12v high water level - ,

£18.24 · Buy It Now

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12v red air raid - air, siren

12v red air raid - air, siren

£8.39 · Buy It Now

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120 12v wired alarm siren - 120,

120 12v wired alarm siren - 120,

£13.90 · Buy It Now

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12v 120db mini wired - 120db, horn

12v 120db mini wired - 120db, horn

£5.99 · Buy It Now

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Piezo siren 12v sounder alarm - siren,

Piezo siren 12v sounder alarm - siren,

£7.19 · Buy It Now

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Car reverse alarm horn warning - reverse,

Car reverse alarm horn warning - reverse,

£7.20 · Buy It Now

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Car truck reverse warning - car,

Car truck reverse warning - car,

£11.00 · Buy It Now

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Hella 3am 922 - hella, 000-971

Hella 3am 922 - hella, 000-971

£17.77 · Buy It Now

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Tone 12v 100w sound car - 12v,

Tone 12v 100w sound car - 12v,

£11.00 · Buy It Now

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Dc12v 120db mini - 2x,

Dc12v 120db mini - 2x,

£25.69 · Buy It Now

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100w 12v car warning - 12v,

100w 12v car warning - 12v,

£13.49 · Buy It Now

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12v 120db mini wired - 120db, horn

12v 120db mini wired - 120db, horn

£6.12 · Buy It Now

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12v sound loud car warning - 7,

12v sound loud car warning - 7,

£11.00 · Buy It Now

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12v sir1tbb01 120db battery - 12v,

12v sir1tbb01 120db battery - 12v,

£12.82 · Buy It Now

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12v red motor - driven, air

12v red motor - driven, air

£7.54 · Buy It Now

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Miniature piezo siren 12v - piezo,

Miniature piezo siren 12v - piezo,

£7.99 · Buy It Now

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Car alarm siren - alarm, horn

Car alarm siren - alarm, horn

£11.25 · Buy It Now

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12v 100w sound - 100w, single

12v 100w sound - 100w, single

£12.60 · Buy It Now

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Outdoor siren indoor - outdoor, siren,

Outdoor siren indoor - outdoor, siren,

£13.00 · Buy It Now

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12v car alarm loud - loud, speaker

12v car alarm loud - loud, speaker

£11.00 · Buy It Now

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Wired loud alarm horn 110db - wired,

Wired loud alarm horn 110db - wired,

£11.99 · Buy It Now

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Universal 12v siren for - universal,

Universal 12v siren for - universal,

£13.95 · Buy It Now

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Car truck warning alarm - car, siren

Car truck warning alarm - car, siren

£16.39 · Buy It Now

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Dc12v 200w sound loud car - dc12v,

Dc12v 200w sound loud car - dc12v,

£119.99 · Buy It Now

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12v siren alarm dual - 12v,

12v siren alarm dual - 12v,

£14.99 · Buy It Now

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100w 12v sound - 12v, 7

100w 12v sound - 12v, 7

£11.00 · Buy It Now

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12v sound loud car - 7,

12v sound loud car - 7,

£10.99 · Buy It Now

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Wired strobe siren 120db - strobe, sound

Wired strobe siren 120db - strobe, sound

£5.79 · Buy It Now

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Tone siren emergency alarm - 7,

Tone siren emergency alarm - 7,

£15.59 · Buy It Now

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12v 130db wireless electronic - 12v,

12v 130db wireless electronic - 12v,

£17.99 · Buy It Now

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12v sound loud - 12v, warning

12v sound loud - 12v, warning

£14.81 · Buy It Now

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12v tone sound - 12v, horn

12v tone sound - 12v, horn

£9.12 · Buy It Now

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12v 120db battery - 120db, backup

12v 120db battery - 120db, backup

£13.29 · Buy It Now

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Universal 12v motor driven - motor, air

Universal 12v motor driven - motor, air

£13.49 · Buy It Now

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12v 24v truck vehicles car - 12v-24v,

12v 24v truck vehicles car - 12v-24v,

£13.49 · Buy It Now

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Universal 12v 120db - universal, battery

Universal 12v 120db - universal, battery

£13.49 · Buy It Now

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12v 120db loud - dc, wired

12v 120db loud - dc, wired

£13.59 · Buy It Now

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📊96 listings · from £3.09 · avg £13.99
⚠️ These listings were last updated more than 20 days ago. Search for fresh listings

Browse 96 12v alarm siren listings currently in our index. Prices range from £3.09 to £119.99, with an average of £13.99. 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 →

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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 96 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 £3.09, while premium listings can reach £119.99 — giving you a wide budget spread to work with. The average price of £13.99 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.

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