12V horns and reversing alarms
12V horns and reversing alarms are the signal horns, trumpet horns and reversing alarms rated for 12 volt tractors, quads, pickups and farm machinery. This page lists the 12V units: disc horns in high and low tone from 105dB to 118dB, twin trumpet horns and reversing alarms at 97dB and 107dB, including self-adjusting alarms that match the ambient noise.
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Horn, 12 Volt
12V In stock £44.20 inc VAT Add to basket -
Signal Horn - 12V - 125dB(A)
12V In stock £55.04 inc VAT Add to basket -
Back-up Alarm - 12/48V - 110dB(A)
12V In stock £48.25 inc VAT Add to basket -
Signal Horn - 12V
12V In stock £231.85 inc VAT Add to basket -
Signal Horn - 12V - 118dB(A)
12V In stock £58.40 inc VAT Add to basket -
Trumpet Horn - HELLA eLONG-LIFE HORN TE40 SET - 12V - 112dB(A)
12V In stock £48.67 inc VAT Add to basket -
Trumpet Horn - HELLA ESSENTIAL HORN TE12 SET - 12V - 110dB(A)
12V In stock £15.08 inc VAT Add to basket -
Trumpet Horn - HELLA ESSENTIAL HORN TE22 - 12V - 110dB(A) - High Tone
12V In stock £25.87 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £17.83 inc VAT Add to basket -
Signal Horn - HELLA ESSENTIAL HORN S77 - 12V - 110dB(A) - High Tone
12V In stock £11.48 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £29.28 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £17.93 inc VAT Add to basket -
Signal Horn - HELLA STYLE HORN S98 - 12V - 115dB(A) - High Tone
12V In stock £10.60 inc VAT Add to basket -
Signal Horn - HELLA STYLE HORN S98 SET - 12V - 115dB(A) - Low Tone/High Tone
12V In stock £15.47 inc VAT Add to basket -
Signal Horn - HELLA PERFORMANCE HORN S130 SET - 12V - 118dB(A)
12V In stock £77.04 inc VAT Add to basket -
Signal Horn CA26 - 12V - 115dB(A) - High Tone - Quantity: 1
12V In stock £64.12 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £23.89 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £23.72 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £20.64 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £21.97 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £23.89 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £24.61 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £24.61 inc VAT Add to basket -
Signal Horn - HELLA OE-CONNECT HORN TE26 SET - 12V - 110dB(A)
12V In stock £24.61 inc VAT Add to basket
Choosing a 12V horn or reversing alarm
A single high tone disc horn meets the road requirement on a tractor; a matched high and low tone pair is louder and more distinct in traffic. Check the mounting bracket and the terminal type (two 6.3mm blades on most units). A reversing alarm wires to the reverse lamp circuit and sounds whenever reverse is selected; a self-adjusting alarm is the right choice where a yard is close to houses. For 24 volt machines see the 24V horns and alarms page. Reverse lamps are under reverse lamps, and all horns and alarms are listed with voltage and output.