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Universal 12-24V 100dB Waterproof Back-Up Alarm

Free shipping on orders over $29.99

$13.79

$ 6 .99 $6.99

In Stock

About this item

  • B11WH is made for light /medium duty applications in low/medium areas
  • Compact size and easy to install
  • Reinforced plastic housing(IP68)
  • Voltage polarity protection
  • CE certified



Product Description

When a large vehicle is reversing, the buzzer backup alarm can help the vehicle effectively remind pedestrians and surrounding vehicles to stay away from dangerous areas

YS-B11WH

EASY INSTALLATION

Compact size and easy to install.

YS-B11WH

DECIBEL

Produces a powerful beeping sound, that is 100dB, to help warn when the vehicle is backing-up.

YS-B11WH

WATERPROOF UPGRADE

Reinforced nylon housing eliminates corrosion damage and waterproof (IP 68).

YS-B11WH

VOLTAGE

10-24 VDC

  1. B11WH is made for light /medium duty applications in low/medium areas.
  2. Compact size and easy to install.
  3. Reinforced plastic housing(IP68).
  4. Voltage polarity protection.
  5. CE certified.

  • Dimension: 2.4 x 1.7 x 2.7 inches
  • Output: 100 dB±3 @4ft
  • Voltage: 10-24 VDC
  • Current: less than 0.6 A
  • Temperature range: -30℃ to 65℃
  • Frequency: 2800 Hz ±10%

Bradford Evans
2025-09-04 15:15:26
This is my second purchase of this item for each of my cars. The product was easy to install and even I, as a non-mechanic, was able to run the wiring from the back-up light... through the truck....and to the under carriage and to the product. Easy install.... provides loud (but not too loud) sound....and small size. Great product and would recommend to anyone who wants to add some safety to the family car(s).
Robert F.
2025-09-02 12:35:05
Insurance requires these on my trucks. Easy to wire to the reverse light. Can just attach them with a tie wrap if needed, they a re light. Good buy!
william king
2025-09-01 17:25:56
All is good, but would be really ideal if the loudness could be adjusted
Early Adopter
2025-08-26 20:37:06
The media could not be loaded.
Dragon
2025-08-21 20:25:35
Wires are good quality and sealed securely. Fit nicely into my boat panel as an under-flow / over heat / low oil pressure alarm. The buzzer I purchased with a kit earlier in the year did not get my attention at 45 mph into the wind. It was useless. If this doesn't get my attention, I am not sure what will. Good value, easy hookup.
Eddie
2025-08-08 16:19:27
Bad
tcsmithsr
2025-07-19 13:39:35
Way too loud you are better off to use a small 12V buzzer with half the db's UNLESS you need it loud for commercial applicationtoo loud for home owner use
SRTEST
2025-07-18 20:29:39
Works as described
Jordan
2025-07-13 10:59:39
Efficace et fonctionne comme il ce doit
Dan Q.
2025-07-09 14:10:16
Easy installation. Just loud enough for motorhome. I wired it to a remote controlled relay in order to turn on/off at will. Sometimes, backing into a camping site with my wife outside in the back checking things out, we don't need the beeper annoying the neighbors.
Mo W
2025-06-23 15:03:39
This back up alarm is pretty nice compared to the other high-end ones, it was installed on a pick up truck where it was used in a very muddy environment, it was all covered with mud, but still worked as the first day, it held good and Haward environment and for the price you can go wrong, There is nothing bad to say about this unit so it is highly recommended
Elie A.K.
2025-06-20 12:32:19
Acheté pour remplacer un autre avertisseur sur une machine à sacs
Arash sharif
2025-06-19 14:46:14
Working good
Bradford Evans
2025-06-09 15:22:50
This is my second purchase of this item for each of my cars. The product was easy to install and even I, as a non-mechanic, was able to run the wiring from the back-up light... through the truck....and to the under carriage and to the product. Easy install.... provides loud (but not too loud) sound....and small size. Great product and would recommend to anyone who wants to add some safety to the family car(s).
Robert F.
2025-06-07 10:48:26
Insurance requires these on my trucks. Easy to wire to the reverse light. Can just attach them with a tie wrap if needed, they a re light. Good buy!
william king
2025-06-04 17:24:50
All is good, but would be really ideal if the loudness could be adjusted
Early Adopter
2025-05-29 16:37:05
The media could not be loaded.
Dragon
2025-05-24 17:03:16
Wires are good quality and sealed securely. Fit nicely into my boat panel as an under-flow / over heat / low oil pressure alarm. The buzzer I purchased with a kit earlier in the year did not get my attention at 45 mph into the wind. It was useless. If this doesn't get my attention, I am not sure what will. Good value, easy hookup.
Eddie
2025-05-19 18:31:58
Bad
tcsmithsr
2025-05-12 20:39:58
Way too loud you are better off to use a small 12V buzzer with half the db's UNLESS you need it loud for commercial applicationtoo loud for home owner use
SRTEST
2025-05-07 10:30:33
Works as described
Jordan
2025-05-03 14:23:05
Efficace et fonctionne comme il ce doit
Dan Q.
2025-04-28 15:20:49
Easy installation. Just loud enough for motorhome. I wired it to a remote controlled relay in order to turn on/off at will. Sometimes, backing into a camping site with my wife outside in the back checking things out, we don't need the beeper annoying the neighbors.
Mo W
2025-04-10 17:26:43
This back up alarm is pretty nice compared to the other high-end ones, it was installed on a pick up truck where it was used in a very muddy environment, it was all covered with mud, but still worked as the first day, it held good and Haward environment and for the price you can go wrong, There is nothing bad to say about this unit so it is highly recommended
Elie A.K.
2025-02-21 18:13:22
Acheté pour remplacer un autre avertisseur sur une machine à sacs
Arash sharif
2025-02-11 18:15:08
Working good
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