Be Heard, Stay Safe – Narva Squawk Tone Reversing Alarms for Construction, Industrial and Mining Use

At Narva, we understand that safety is everything on a worksite—whether you're on a construction project, in a busy yard, or managing vehicle movements in a mine. But being safe shouldn't mean being disruptive. That’s why we’ve introduced the Narva Squawk Tone Reversing Alarm Range, a smarter, safer, and more considerate solution for construction, industrial and mining environments.

Our alarms are built tough to handle the harshest conditions in Australasia, with features that prioritise durability, clarity, and smarter noise control—keeping operators protected and nearby personnel informed, without contributing to unnecessary noise pollution.

SAE J994 Approved:

This means the alarm’s volume is guaranteed, thanks to stringent and repeatable testing requirements
Non-SAE-approved alarms can vary by as much as 10 decibels from their stated rating
For peace of mind, always choose SAE-approved reverse alarms

What Makes Squawk Tone Different?

Unlike traditional beepers, Squawk Tone reversing alarms emit a directional tone that’s easier for nearby workers to localise. This means people within the hazard zone hear the alarm clearly, while those outside it aren’t unnecessarily disturbed.

It’s a feature that’s quickly gaining traction across mining, civil construction and logistics operations where traditional alarms can become a background nuisance, reducing their overall effectiveness.

Built for Harsh Environments

Narva’s Squawk Tone alarms are designed to meet the highest standards of reliability and ruggedness:

Fully sealed to IP67 – protected from dust, dirt and moisture
Vibration-resistant – perfect for heavy-duty machinery and mobile plant
Temperature rated from -40°C to +85°C – suitable for operation across the harshest Australian and New Zealand climates

Whether it’s a grader in the Pilbara, a loader in a quarry, or a service truck on-site, you can count on Narva alarms to keep working when it matters.

A Solution for Every Application

We offer a new range of fixed-output and smart alarms, all operating on 12 or 24 volts, so you can integrate them into just about any vehicle or plant setup.

72640 – 87dB
72642 – 97dB
72644 – 102dB

Each of these models delivers consistent output at fixed decibel levels, giving operators a choice based on vehicle size, site requirements, or surrounding noise levels.

Smarter Safety with Self-Adjusting Volume

The 72646 Smart Squawk Tone Alarm takes things a step further. This self-adjusting model automatically varies its output between 77 and 97 decibels, depending on ambient noise levels. It’s the ideal option for dynamic environments like mines and quarries, where noise can fluctuate and the need to maintain attention—without overwhelming the worksite—is essential.

Backed by Narva Quality

All Narva reversing alarms are engineered for real-world conditions, with long service life, easy installation and dependable performance. Whether you're after a fixed-output unit for plant equipment or a smart alarm for a high-risk environment, we’ve got a solution that suits.

For those seeking traditional tone options, we also offer a full range of standard reversing alarms in both static and self-adjusting formats.