Break buzzers for any facility, built around your floor.
Extra-loud, web-scheduled break and shift buzzers for warehouses and factories. No monthly fees, no rewiring. Get instant pricing on your exact system in minutes.
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- One buzzer covers up to 25,000 sq ft of industrial floor at 110 dBA
- Schedule from any browser, up to 500 break, shift, and alert events
- No monthly fees and no rewiring, with 14-day battery backup of your settings
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A complete break buzzer system in three steps
No rewiring, no software to install. It runs on the network you already have.
Connect & power
Plug the controller into your network and mount the buzzer. Low-voltage, and most systems install in about two hours.
Schedule in your browser
Set break, lunch, and shift-change times from a simple web interface. No dedicated PC, no keypad programming.
It signals automatically
The buzzer rings facility-wide on schedule, with up to 500 events plus manual and emergency triggers.
Keep your existing bells, speakers, or PA
Already have bells or a PA system? A Netbell controller adds web-based scheduling without replacing your hardware.
Starting fresh? The all-in-one Netbell-KB includes the controller and the 110 dBA buzzer in one box, ready to plug in.
Sized to where you work
From a single noisy floor to a multi-building site, the right buzzer setup for every space.
Warehouse & Distribution
Extra-loud 110 dBA buzzers cut through machine noise, covering up to 25,000 sq ft per unit.
Factories & Manufacturing
Automate shift changes, breaks, and line-stop signals with reliable, scheduled alerts.
Construction Sites
Extra-loud break and shift signals that cut through heavy equipment noise, indoors or out.
Multi-Building Sites
Coordinate buzzers across separate buildings on one shared network schedule.
Real hardware, built to last
Every part of the system, designed, developed, and supported in the USA. Pick an all-in-one, a cost-effective bundle, or a controller for what you already own.
All-in-one systems
All-in-One Break Buzzer
Controller and 110 dBA buzzer in one NEMA box. Plug in and run.
Multi-Tone Buzzer
Up to 80 tones for distinct break, shift, and emergency signals.
Buzzer + Clock
All-in-one buzzer with an integrated network-synced clock.
Cost-effective bundles
Controller + 1 Buzzer
Web-based controller with one remote-mount 110 dBA buzzer kit.
Controller + 2 Buzzers
Two buzzer zones driven from one Netbell-2 controller.
Controllers for existing systems
Bell Controller
Web-controls your existing dry-contact bells and buzzers, up to 2 outputs.
Tone Generator
Adds 40 tones and 500 scheduled events to your existing PA system.
Tone Generator + Amp
Built-in amplifier drives your existing 8-ohm speakers directly.
Add-ons
External Buzzer Kit
Add another 110 dBA buzzer zone to a KB or KB-M2 system.
Digital Clock
Network-synced NTP digital clock to match your buzzer schedule.
Manual Trigger
Large palm button for on-demand or emergency ringing.
Everything the buzzer system does
Add capabilities as you need them, all managed from the same web interface.
Scheduled break & shift signals
Up to 500 scheduled events for breaks, lunches, shift changes, and reminders. Set it once and it runs itself.
Manual & emergency triggers
Wire a palm button or push switch to the controller's digital input to ring the buzzer instantly when you need it.
Multi-tone signals
The Netbell-KMB offers up to 80 tones, so break, shift change, and emergency each get a distinct sound.
Expandable zones
Add external buzzer kits as your floor grows, or connect to bells and PA equipment you already own.
Synchronized clocks
Add NTP-synced digital wall clocks that stay in step with your buzzer schedule.
No subscription
One-time purchase that runs on your own network, with 14-day battery backup of all settings.
Installation & technical requirements
Everything your network and maintenance team needs to scope the install. Expand any section for details.
- Controller: 10/100 Base-TX Ethernet, PoE or 12/24VDC
- Buzzer kit: 4-inch 24VAC buzzer, weatherproof back box, 24VAC supply and 10 ft cable included
- Output: 110 dBA @ 1 m (100 dBA @ 10 ft), volume adjustable, up to ~25,000 sq ft per buzzer
- Wiring: low-voltage; most systems install in about two hours
- Management: built-in web server, configured from any browser, no software to install
- Offline: once schedules are set, it runs without an internet connection
- Power outage: built-in rechargeable battery keeps all settings for up to 14 days
- Recovery: schedule resumes automatically when power returns
- Events: up to 500 scheduled events for breaks, shifts, reminders, and drills
- Tones: 40 standard tones on the NTG; up to 80 tones on the KMB multi-tone buzzer
- Manual triggers: digital inputs accept a palm button or push switch for on-demand or emergency ringing
- Existing bells: Netbell-2 controller, 2 dry-contact outputs (Normally Open, 8A @ 30VDC)
- Existing PA: Netbell-NTG line output to your amplifier
- Powered speakers: Netbell-NTG-A100 with built-in amplifier for 8-ohm speakers
- Expansion: add external buzzer kits to KB / KB-M2 external outputs
American-designed, expert-supported
You're buying direct from the source, not a reseller, with real people who know the product.
No monthly fees
A one-time hardware purchase. No recurring software subscriptions, ever.
On-premise, you own it
Runs on your own network and keeps working without internet after setup. No cloud lock-in.
Designed & developed in the USA
Hardware and software designed, developed, and supported in the United States, sold direct from the source.
Backed for the long haul
US-based lifetime technical support, a 1-year warranty, and free firmware updates. Real people who know the systems.