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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Signal Horn - HELLA HEAVY DUTY HORN DL50 - 12V - 114dB(A)
12V In stock £30.44 inc VAT Add to basket -
Signal Horn - HELLA HEAVY DUTY HORN DL50 SET - 12V - 114dB(A)
12V In stock £53.39 inc VAT Add to basket -
Signal Horn - B133 - 12V - 110dB(A) - High Tone/Low Tone
12V In stock £108.52 inc VAT Add to basket -
Signal Horn - HELLA PERFORMANCE HORN B133 SET - 12V - 118dB(A)
12V In stock £62.20 inc VAT Add to basket -
Signal Horn - B133 - 12V - 110dB(A) - Low Tone - Quantity: 1
12V In stock £63.32 inc VAT Add to basket -
Signal Horn - B133 - 12V - 110dB(A) - High Tone - Quantity: 1
12V In stock £57.67 inc VAT Add to basket -
Signal Horn CA10 - 12V - 115dB(A) - High Tone/Low Tone
12V In stock £38.54 inc VAT Add to basket -
Trumpet Horn - 12V - 118dB(A)
12V In stock £67.16 inc VAT Add to basket -
Trumpet Horn - 12V - 118dB(A)
12V In stock £51.08 inc VAT Add to basket -
Signal Horn - M26 - 12V - 105dB(A) - Low Tone - Quantity: 1
12V In stock £22.63 inc VAT Add to basket -
Signal Horn - M26 - 12V - 105dB(A) - High Tone - Quantity: 40
12V In stock £14.20 inc VAT Add to basket -
Signal Horn - HELLA HEAVY DUTY HORN M26 - 12V - 105dB(A) - Low Tone
12V In stock £17.28 inc VAT Add to basket -
Signal Horn - HELLA HEAVY DUTY HORN M26 - 12V - 105dB(A) - High Tone
12V In stock £19.31 inc VAT Add to basket -
Signal Horn - HELLA HEAVY DUTY HORN B36 - 12V - 116dB(A) - High Tone
12V In stock £18.96 inc VAT Add to basket -
Signal Horn - HELLA HEAVY DUTY HORN B36 - 12V - 116dB(A) - High Tone
12V In stock £22.60 inc VAT Add to basket -
Signal Horn - B36 - 12V - 116dB(A)
12V In stock £18.72 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.