Whelen Backup Alarm Switch

Whelen Backup Alarm Switch

Give the operator the final say. The Whelen BUSW1 backup alarm switch installs in the cab and controls a Whelen back-up alarm connected to the vehicle's reverse-lamp circuit, so crews can silence the alarm where regulations allow — funeral escorts, residential night work, or staging areas — and re-arm it with one press.

Key Features & Upfitter Specs

• Operator Control: Cab-mounted switch arms or silences the connected back-up alarm without pulling fuses or cutting wires.
• Direct Pairing: Designed for Whelen back-up alarms, including the self-adjusting BU7797, BU77102, BU82107, and BU87112 series.
• Simple Wiring: Installs inline between the reverse-lamp circuit and the alarm for a clean, serviceable install.
• Fleet Ready: Backed by Whelen's warranty and made in America.