Compumatic MP550 Time Clock and Synchronized Buzzer Kit
Description
The MP550 synchronized buzzer kit is a front-loading electronic punch clock system that records employee time and activates a buzzer at scheduled times. It is used to automate shift changes, breaks, and lunch periods without a separate timer, software, or network connection. Programming and signal control are handled directly inside the MP550, so the system runs stand-alone once set.
This kit pairs an MP550 time clock (with a factory-installed signal kit) with one 110V vibrating buzzer and the required power components and wiring. The buzzer output is intended for audible alerts in work areas where employees may not always be watching the clock. The included wiring is typically supplied as a labeled twin-stranded cable with an approximate 10-foot run for standard installations. Signal duration is set through the MP550’s internal programming, allowing short “warning” rings or longer shift-change alerts based on your schedule.
This configuration is commonly installed in shops, warehouses, maintenance departments, and small production areas where a simple time card workflow is preferred but consistent signaling is also required. Using the clock as the signal controller reduces parts count compared to a separate timer/relay setup and keeps time punches and alerts tied to one device. If coverage becomes an issue due to distance or noise, this kit is typically the starting point before moving to a two-signal or multi-zone setup.
Compatibility and Usage
- Compumatic MP550 electronic punch clock platform
- Factory-installed signal kit for scheduled buzzer activation
- Includes one 110V vibrating buzzer (commonly specified around 102 dB)
- Includes power supply and installation wiring (typical ~10 ft run)
- Stand-alone operation — no software or network required
- Used for shift changes, breaks, lunch, and timed reminders
FAQ
What is the difference between the buzzer kit and the bell kit?
A buzzer produces a sharper tone profile than a bell and is often easier to notice in higher-noise areas. Both are controlled by the MP550 signal kit.
Can I relocate the buzzer later?
Yes. The buzzer can be moved by rerouting wiring, using appropriate wire gauge and standard electrical practices.
Does the MP550 need a PC to run the schedule?
No. The schedule runs from the MP550’s internal programming and continues without a computer.
Related Items
- MP550 Replacement Ribbon
- E2 Time Cards (2-Week Format, 1000/Box)
- Time Card Rack (25 Slot)
- Surge Protector for Time Clocks
- Bell Wire (25 ft / 50 ft / 100 ft / 250 ft)
- Additional 110V Buzzer (coverage expansion)
These Systems Pay For Themselves In Just Two Weeks.
Example:
You are in manufacturing, you have 10 or more employees.
They drag out break and lunch time by 2 to 3 minutes, every day, two breaks, one lunch a day. Worse yet, you have "smokers"
When the lunch ends, someone has to shout "Back to work!"
Stop the drama, the bell becomes "the bad guy." Not you or a manager.
Install a simple - or advanced - bell or buzzer system, the bell becomes that "bad guy."
They won't miss a break, they will take lunch on time, they will start when they should, they will come back, like trained people, when they are supposed to.
You will collect back, using very conservative numbers, a minimum of 4 minutes per day per person.
Doesn't sound like much, you would be wrong.
Using extremely conservative numbers, the math won't lie:
1 employee, $20 per hour WITH taxes and benefits. (You're paying about $20 up front, you can't avoid the taxes, PTO, insurances):
That's 33 cents labor cost, one low-pay employee, per minute.
Recover 1 minute of break time. 2 minutes of lunch time. 1 more minute of second break.
Remember, they then work until the END OF DAY with the bell system, not slowing down 10 minutes ahead of time. That's additional work that they get done.
We can count on 4 minutes absolute minimum time recovered, per man, per day. 4x.34=$1.36 per day. 5 days: $6.80 per week.
52 weeks: $352 per year per employee in recovered labor time. Every year.
$352 x 10 employees: $3,520. Every year. And the shop becomes more organized.