MP550 signaling module
MP550 bell ringer upgrade

Compumatic MP550 signal kit. Ring Bells and buzzers from this clock.

Our Price: $50.00
MP550 bell timer

Accessories & Supplies:

DetailsIDProduct NameDescriptionPriceAdd To Cart
Click 88 6" 110V AC Bell 96-102dB6" 110V AC bell$99.00
Click 83 110V Bell and Buzzer Power Supply110V Power Supply$49.00
Click 86 4" 110V AC Buzzer 102db4" 110V AC Indoor Buzzer$139.00
Click 24 Operational Back-Up Battery8 hour operational back up battery$35.00

  • This is a small component you mount plug inside the MP550 and 1000e
  • Normally it is installed before shipping, but it can be done after the purchase.

  • It is a cold-contact low amperage relay. 
  • You then run one wire from a low voltage DC power supply through it, to run a separate relay which perfectly isolates the clock from the bell/buzzer feedback. 
  • We build these custom power supplies. 
  • You can have a low voltage, or high voltage system.
  • Call us for more information.