Netbell-KB Web-Based Vibratone Horn
NetBell-KB ("Buzzer")

NetBell-KB Web-Based Federal Signal Vibratone horn. Self-contained break buzzer system that covers up to 25,000 SQF in industrial working areas In stock, fast shipping. UPC 01-910-00022

Retail Price: $989.00
Our Price: $890.00
Network Bell

Accessories & Supplies:

DetailsIDProduct NameDescriptionPriceAdd To Cart
Click 751 LED Digital ClockLinortek Digital Clock$430.00
Click 703 NetBell KL Second BuzzerNetBell KL Weatherproof Buzzer$315.00
Click 56 Amber Flashing LightLow Voltage Shift Change Light$49.00
Click 407 Bell Wire25' Insulated bell wire$19.95
Click 404 Bell Wire50' Insulated bell wire$34.95
Click 405 Bell Wire100' Insulated bell wire$44.95
Click 413 Bell Wire250' Insulated bell wire$94.95


Netbell-KB Web-Based Scheduled Shop Buzzer

The Netbell-KB is a compact, self-contained web-based break buzzer system for factories to build a fully automated web-based timed alert system for signaling shift changes, general alarm, breaks and process control signaling in areas of high ambient noise levels.

The system is built on a TCP/IP platform with a built in web server, which allows users to access, control, and schedule the buzzer accurately and effectively using an internet connection from anywhere.

The Netbell™-KB features a high quality 4 inch high output buzzer (100dBa @10' ) and a completely wired web controller installed within a NEMA-rated box; all software and mounting hardware required for installation is included.

It comes with up to 500 event schedules and 8 different settable ringing pulses for different events.

Own an existing time and attendance system? 
Does it get the time from the online NTP Servers?  If so, this can be set to get the time from the exact same source!  Then everything is aways exactly on the same second.

p/n 01-910-00022

Employee Time Clocks has taken the work out of building either a standalone or networked break buzzer system with the all-in-one Netbell™-KB.

We use our tested Netbell™ platform, installed into a complete buzzer kit. Just pull the completely assembled buzzer out of its packaging, connect power and network with provided cables and it's ready to go. Use the amazing "Discovery" program to instantly find the Netbell™ server, then login to the web-based server located on the buzzer with a standard web browser and set up your schedules or download an existing schedule over the Internet. It can be installed anywhere on the network, and does not require a direct connection to a PC. Now it is easy for factories to have a fully automated web-based timed alert system for signaling shift changes, general alarm and breaks in areas of high ambient noise levels.

This is a low voltage break buzzer with a connection for one more buzzer.  You can add one additional buzzer, up to 250' away with 18 gauge wire, or 500' with 16 gauge wire.

Intended to be an all-in-one solution, the Netbell-KB a high quality 4 inch high output buzzer (100dBa @10' ) and a completely wired web controller installed within a NEMA-rated box; all software and mounting hardware required for installation is included. It’s ready to go out of the box, and you need only connect the unit to power and the existing network with the provided cables; scheduling and setup is accessed through any web browser.

For those who wish to forego networking the Netbell-K, it is also able to function as a stand-alone device. Connecting the unit to a PC, upload the bell schedules, then remove, and it will function as scheduled. Whether stand-alone or networked, users can easily import/export their existing bell schedules using a simple text format.

The Key Features

  • Up to 500 bell event schedules, 8 changeable ringing pulses for different events.
  • Import/export bell schedules from existing data in text format.
  • The built in web interface provides quick access to setup and manage your buzzer over the Internet, no additional software or designated computer required.
  • Over 10,000 item log.
  • Flexible and accurate control of when the bells ring (HH:MM:SS, SUNDAY-SATURDAY).
  • Built-in real time clock synchronizing with NTP server every 10 minutes (user changeable)
  • Completely configurable network settings including static or dynamic IP.
  • Built in DynDNS interface.
  • Password protection.
  • Email notification of various user selectable events.
  • Built in rechargeable battery for power fail backup.
  • Program and web page interface are upgradable over the internet.
  • Designed, developed and made in USA.


This has been going on for years: 
People keep asking "How loud are your bells?"

Unfortunately, it's like describing a dinner at a restaurant. It depends on the environment. 
Is it an empty room like a gymnasium?  Does it have lots of rooms, or lots of background noise like a woodworking shop?  Is this a warehouse with lots of rows of shelving and boxes of fabric?

Bells and buzzers all seem to max out at 102db.  102db is very loud.
110db is extremely loud, check out the YouTube video below. 

In our experience, installing 2 to 3 bells or buzzers is much more effective than just one.   Put one by the timer, then run wire out the another, 50 to 100' away.  It won't be louder, it will just be more likely to be heard above all the background noise.

So, yours truly did some research recently (2016), this is interesting,
Using an Android phone decibel app, this is what we found:

**A bedroom at night in the country, windows closed:  28 - 32 db
**A bedroom at night in the city with the windows closed:  42- 46 db
**Office environment, people chattering:  62db

**American Airlines 737 inside. just behind the wing during takeoff:  86db
**Same jet, landing with the reverse thrusters on:  88db  That ROAR you hear..
**Same jet, cruising for 3 hours, it's 82 to 86db.  That's (partially) why flying is so tiring.
Shop buzzer's:  102db (Edwards, the ones we sell) 
                           Other brands "hum" at 82 to 86.
Our bells test out at 98 to 103db depending on voltage

It seems that no one offers anything louder than 103db, unless it goes on a train, ocean liner, or fog horn.  In some cases loudspeakers are used on farms; we don't have them, but our equipment will ring them.  This is 110db, a train horn on an obnoxious person's pickup truck.  In a working environment, this would clearly cause accidents.

More bells or horns does not make it louder, it just makes it more pervasive - easier to hear through the machinery, across the rooms, over conversations and running equipment like compressors, lifts, packing tape, all that.

July 5, 2018 more to know: 
A Fire Station Siren is 106 decibels. Our bells and buzzers are typically 98 to 102.

                               NetBuzzer with add-on amber strobe lights                             

              NetBuzzer with additional low voltage buzzer and low voltage strobe light