Whelen BU82107 82–107 dB Self-Adjusting Back-Up Alarm — UnitedBuilt Equipment Skip to content
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Back-Up Alarm, Self-Adjusting 82-107dB, 12-48 VDC, Universal Mount, Stud, Whelen BU82107 - UnitedBuilt Equipment

Back-Up Alarm, Self-Adjusting 82-107dB, 12-48 VDC, Universal Mount, Stud, Whelen BU82107

SKU 0002986
Brand Whelen
Availability:
10 in stock | Available on backorder
Save 26% Save 26%
$155.00
$155.00 - $155.00
$155.00
$115.20
$115.20 - $115.20
$115.20

Product Images

Images are for representation only and may differ from the actual product.

The Whelen BU82107 is a self-adjusting back-up alarm for commercial vehicles and mobile equipment. It automatically responds to surrounding noise and provides an 82-107 dB warning output while operating on 12-48 VDC electrical systems.

The glass-filled nylon housing is fully encapsulated for resistance to moisture, vibration, and corrosion. Universal mounting supports horizontal or vertical installation, and the BU82107 uses stud connections for vehicle wiring.

Whelen specifies SAE Class F compliance and approximately half-second ambient-noise adjustment intervals. Confirm system voltage, mounting location, wiring, and required warning level before installation.

Key Features

Feature Details
Self-Adjusting Output Automatically responds to ambient noise to maintain an appropriate warning level
82-107 dB Range Published warning-output range for model BU82107
12-48 VDC Operation Wide vehicle-voltage compatibility
Universal Mount Can be mounted horizontally or vertically
Stud Connection Electrical connection style for the BU82107 configuration
Encapsulated Housing Glass-filled nylon construction resists moisture, vibration, and corrosion

Specifications

Attribute Details
Brand Whelen
Model BU82107
UnitedBuilt SKU 0002986
Product Type Self-Adjusting Back-Up Alarm
Sound Output 82-107 dB
Voltage 12-48 VDC
Adjustment Ambient-noise response approximately every 0.5 second
Mounting Universal / Horizontal or Vertical
Electrical Connection Stud
Housing Glass-Filled Nylon
Encapsulation Fully Encapsulated
Certification SAE Class F
Dimensions 5.20 in. W x 3.20 in. H x 2.88 in. D
Warranty 2 Years

Applications

Application Use Case
Water Trucks Reverse-warning alarm for compatible commercial truck electrical systems
Construction Equipment Audible warning for mobile equipment operating around changing ambient noise
Dump and Vocational Trucks Self-adjusting reverse alarm for heavy-duty vehicle applications
Service and Utility Vehicles 12-48 VDC reverse-warning installations requiring universal mounting