Description
Product Overview
The Federal Signal Back Up Alarm is engineered for high-performance safety in industrial environments, emitting a powerful 102 dB sound to alert personnel when vehicles are in reverse. Constructed with a durable machined exterior, it measures 4.5 x 2.8 x 1.7 inches and weighs just 1.76 ounces, ensuring compact and robust design. Key specifications include surface mounting, reverse gear detection sensor technology, and compatibility with 12 to 24VDC systems. It adheres to SAE J994, CE, OSHA, and MSHA standards, making it a reliable choice for heavy-duty applications. Available in variants with stud or wire terminals, this alarm supports universal installation across various vehicle types.

Usage
This back up alarm is ideal for industrial and construction vehicles such as forklifts, trucks, and machinery operating in busy warehouses, construction sites, and mining areas. It is designed for environments where audible warnings are critical to prevent accidents, targeting fleet managers, safety officers, and equipment operators. Use it during reverse maneuvers to ensure clear communication and enhance workplace safety protocols.
Why Choose Us
Federal Signal Back Up Alarms stand out due to their proven reliability and compliance with international safety standards, including SAE J994 and CE. The machined housing offers superior durability against harsh conditions, while the reverse gear detection ensures precise operation. With a high customer rating of 4.5 stars from over 130 reviews, users trust its consistent performance and ease of integration into existing vehicle systems.
Key Features
- Loud 102 dB sound output for clear audible warnings in noisy environments
- Universal mounting design allows easy installation on various vehicle types
- Reverse gear detection technology ensures automatic activation when reversing
- Complies with SAE J994, CE, OSHA, and MSHA standards for safety assurance
- Durable machined exterior resists impact and environmental wear
FAQ
What vehicles is this back up alarm compatible with?
It is compatible with a wide range of industrial vehicles, including forklifts, trucks, and construction equipment that use 12 to 24VDC systems, thanks to its universal mounting and terminal options.
How do I install the back up alarm?
Installation involves connecting the wire or stud terminals to your vehicle’s reverse light circuit and securing the unit with surface mounting hardware, following the provided guidelines for optimal performance.
Does it meet safety regulations?
Yes, this alarm meets SAE J994, CE, OSHA, and MSHA standards, ensuring it is suitable for use in regulated industrial and commercial settings.
What is the sound level range available?
It is available in 97 dB and 102 dB variants, allowing you to choose based on your site’s noise requirements and safety protocols.
Can it withstand outdoor conditions?
The machined exterior is designed to endure tough conditions, including moisture and dust, making it reliable for both indoor and outdoor applications.





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