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Smoke Detector Sensitivity Test Certificate

This certificate documents an NFPA 72 sensitivity test of each smoke detector against its listed obscuration range — tested within one year of installation and at least every alternate year thereafter — with any device found out of range cleaned, adjusted or replaced.

NFPA 72 (National Fire Alarm and Signaling Code — smoke detector sensitivity testing)Valid: Alternate year (24 months) after the first-year test

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Sample Detector Sensitivity Test certificate

Sample Smoke Detector Sensitivity Test Certificate certificate created with CertBox, showing the professional PDF layout with test method — panel-read analog, calibrated meter or listed aerosol, per-device listed sensitivity range and measured value, devices found out of range and the action taken

Sample Detector Sensitivity Test with fictional data. All personal details shown are fake.

What it covers

  • Test method — panel-read analog, calibrated meter or listed aerosol
  • Per-device listed sensitivity range and measured value
  • Devices found out of range and the action taken
  • Summary counts and overall result

Who needs a Detector Sensitivity Test?

Fire alarm service contractors
Building owners and facility managers
AHJs verifying test compliance

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Frequently asked questions about Detector Sensitivity Test

What sensitivity range must a smoke detector fall within?
Detectors are listed to UL 268 with a sensitivity window, commonly 0.5% to 4.0% obscuration per foot — the specific range is set by the manufacturer and printed on the device label, so it should always be verified against that rather than assumed.
How often is a sensitivity test required?
NFPA 72 requires detectors to be tested for sensitivity within one year of installation, and at least every alternate year after that, unless a documented calculated or listed method of extending the interval is used.

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