Commander3
Selectable-candela strobes and horn/strobes.
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Gentex
Fire alarms youcan see and hear
Strobes, horns and combined warning devices for building fire alarm systems.
About Gentex
Audible and visual fire warning
You can build audible and visual warnings around your fire-alarm circuit with Gentex notification appliances. The Commander family gives you a choice of mounting positions, sound outputs and strobe options.
Meet the manufacturer
Our products
The Gentex range
GHSLF
Low-frequency horn/strobe options for applicable projects.
Explore GHSLF Ask about this rangeCommander 5 Outdoor
Weatherproof notification with the specified back box and cover.
Explore Commander 5 Outdoor Ask about this rangeLight, sound and power
01
Visual output
Candela settings and wall or ceiling mounting affect strobe coverage.
02
Audible signal
Horn tone and volume suit different spaces, with dedicated models for low-frequency warning.
03
Circuit design
The number of devices, current draw and cable length affect the circuit’s power requirements.
Product guide
Find the right type of alarm device
Compare visual, combined and low-frequency warning options.
01
Strobes for visual warning
Strobes provide flashing fire warnings. Their candela setting and wall or ceiling position determine coverage, while compatible synchronisation keeps flashes coordinated.
02
Sound and light in one device
Horn/strobes combine an audible alarm with a flashing warning. Sound and light settings affect current draw and the number of devices a circuit can power.
03
520 Hz warning
Dedicated low-frequency models, including relevant GHSLF variants, provide 520 Hz notification for projects that require it.
Certifications
Approvals, at a glance
UL 1971
Commander3 visual notification
UL 464
Commander3 audible notification
CAN / ULC
Listed Commander3 variants
UL standards identify the tested function; local project acceptance, mounting, synchronization and the selected model still matter. NFPA 72 is an installation code, not a product certification.
From the manufacturer
Get the installation details right
Open Gentex's product resources for wiring, settings and supported configurations.
Open manufacturer resources
Applications
Where And How To Use The Range
Specialist Applications
Low-Frequency Warning
GHSLF appliances produce a 520 Hz alarm tone with a visual strobe. Choose the listed model and output for the application.
Manufacturer DetailsPlan delivery and supportSolution designTesting and commissioningStatutory system testing and maintenanceTraining
More From Gentex
Other Fire Safety Products
Smoke Alarms & Detectors
Photoelectric detection alongside the notification appliance ranges.
Explore RangeSpeakers & Speaker/Strobes
Voice and visual notification for compatible systems.
Explore RangeAsk us about availability and the model requirements for your project.
Technical resources
Product documents and downloads
Frequently asked questions
Quick answers
Can I use a wall strobe on a ceiling?
Only if your model is approved for ceiling mounting. Wall and ceiling strobes spread light differently, so you can’t assume they provide the same coverage.
Can I mix synchronization protocols?
You need a panel or synchronisation module that supports your devices. Matching flash rates alone won’t make different protocols work together.
Is every Gentex horn a 520 Hz device?
No. If you need 520 Hz output, choose a model specifically identified as low-frequency.
How do I choose the candela setting?
Use the room dimensions, mounting position and applicable design requirements. Select a setting supported by the exact strobe and include its current draw in the circuit calculation.
Can I replace a horn-strobe with a similar-looking model?
Check voltage, current, mounting, synchronisation and the required sound and light output. Matching the enclosure shape is not enough to confirm compatibility.
What should I include in a Gentex enquiry?
Send the model number, quantity, panel or power-supply model and whether the device is wall or ceiling mounted. Include the required candela setting and any low-frequency sound requirement.
Talk To Our Team
Design the signal around the people
Share the mounting plan, required output and notification circuit details.