CPSC recall 11-721, announced February 8, 2011, covers Tyco Safety Products Westminster Simplex Fire Alarm Control Panel (about 540 units). The recalled fire alarm control panels can fail to send a signal to alert monitoring centers in the event of a fire. The notice cites 2 incident reports. Building managers should contact SimplexGrinnell for a free software upgrade. Recall contact: call (866) 565-6322, or go to www.simplexgrinnell.com.
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Compare the model on your label, then check any serial numbers, date codes, and exclusions in the notice. A model match alone does not confirm that your unit is included.
The CPSC data does not provide a discrete model-number list for this record. Compare the product description and identification details on the official notice.
Which products are included?
The recalled fire alarm panel is the Simplex 4100U-NXP panel configured for third party monitoring and running software revision 14.01. The words "Simplex," "4100U" and "Fire Control" appear on the fire alarm's front panel. The software revision number can be identified by pressing the "Menu" key on the panel keypad, selecting "Show Software Revision Level" and pressing "Enter."
Confirm these details on the official CPSC noticeWhat to look for
- When sold
- May 2010 through September 2010
- Price paid
- $10,000 to $20,000
Why it was recalled
The recalled fire alarm control panels can fail to send a signal to alert monitoring centers in the event of a fire.
Incidents and injuries
The firm has received 2 reports of alarms failing to alert monitoring centers. No injuries have been reported.
Official remedy
Building managers should contact SimplexGrinnell for a free software upgrade. SimplexGrinnell is contacting its customers directly.
What to do now
- Check the product. This notice lists no model numbers. Compare yours with the description and photos in the official notice.
- Contact the firm. Call (866) 565-6322, or go to www.simplexgrinnell.com.
- Get the remedy. This recall offers new instructions.
- Read the official notice. The CPSC notice is the final word on which units are included and what to do.
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Product and sales details
- Brand
- Tyco Safety Products Westminster
- Manufacturer
- Tyco Safety Products Westminster of Westminster, Mass.
- Product type
- Smoke alarms
- Recall number
- 11-721
- Units
- About 540
- Manufactured in
- United States
- Sold at / sales period
- Distributed by SimplexGrinnell from May 2010 to September 2010 for between $10,000 and $20,000.
Simplex Fire Alarm Control Panel
CPSC product type: Fire or Smoke Alarms
This recall in context
Compared with the 36 smoke alarm recalls in this index, as of October 31, 2026.
- Size
- 540 units: the 25th-largest of 28 smoke alarm recalls that state a unit count. The median is 28,500 units.
- Hazard
- Fire: named in 32 of 36 smoke alarm recalls, the most common hazard among them.
- Remedy
- New instructions: offered in 3 of 36 smoke alarm recalls. The most common is replacement (12).
- Time on sale
- 5 months. Recalled 5 months after the last month of sales the notice gives.
Recall contact information
For more information, contact SimplexGrinnell toll-free at (866) 565-6322 or at the firm's website at www.simplexgrinnell.com
Verify phone numbers, hours, and websites on the current CPSC notice before contacting the firm.
Know someone who has one?
Recalls only work when owners hear about them. Send this notice to family or friends who might own the same product.
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