CPSC recall 16-021, announced October 29, 2015, covers Sure Signal Products Heat-activated fire alarm (about 375,000 units). A defective fusible link sensor (fuse) on the fire alarm can cause the alarm to fail to alert consumers of a fire. The notice reports no incidents. Consumers should immediately contact Sure Signal Products for free replacement fuses. Recall contact: call (972) 393-5500 or (262) 236-0123, or email info@masterguard.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 alarm's model is printed on a label on the back of the alarm.
Which products are included?
This recall involves Sure Signal Products heat-activated fire alarms sold under the following brand names and models: DeTech FST2004H, MasterGuard QR50, Responsive TR70-R and Thermalink QR50. They are white, round and measure about 7 inches in diameter. The alarms have a round fuse at the center. The fuse is white or chrome and about 1.5 inches in diameter, and has a temperature rating of 117°F or 136°F. The alarms were manufactured from January 1, 2004 through July 1, 2015. Date codes are listed in a YYDDD format and range from 04001 through 15182. The alarm's model is printed on a label on the back of the alarm. SSP, the temperature rating and the date code can be found on the back of the fuse.
Confirm these details on the official CPSC noticeWhat to look for
- Model numbers
- 3 listed. Yours must match one exactly.
- Also in the notice
- Date codes. Compare these as well.
- Where to look
a label on the back of the alarm
andthe back of the fuse
(the notice’s words)- When sold
- January 2004 through September 2015
- Price paid
- $300 to $375
Why it was recalled
A defective fusible link sensor (fuse) on the fire alarm can cause the alarm to fail to alert consumers of a fire.
Incidents and injuries
None reported
Official remedy
Consumers should immediately contact Sure Signal Products for free replacement fuses. A video with instructions on how to replace the fuse is available at http://SureSignalProducts.com.
What to do now
- Check the label. Compare your model number with the 3 listed in this recall, then check the date codes the notice lists.
- Contact the firm. Call (972) 393-5500 or (262) 236-0123, or email info@masterguard.com.
- 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
- Sure Signal Products
- Manufacturer
- Sure Signal Products, Inc., of Garden Grove, Calif.
- Product type
- Smoke alarms
- Recall number
- 16-021
- Units
- About 375,000
- Manufactured in
- United States
- Sold at / sales period
- Fire alarm dealers nationwide from January 2004 through September 2015 for between $300 and $375.
Heat-activated fire alarm
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
- 375,000 units: the 5th-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.
- Time on sale
- About 12 years. Recalled 1 month after the last month of sales the notice gives.
Recall contact information
Sure Signal Products is no longer in business. For free replacement fuses for recalled alarms sold under the MasterGuard, ThermaLINK and Responsive brand names, consumers should contact Global Health and Safety at (972) 393-5500 or info@masterguard.com; and for free replacement fuses for DeTech-branded recalled alarms, consumers should contact Reliance Products at (262) 236-0123 or contactus@detech.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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