Honeywell International Inc.

Pittway Corporation

Dale H Johnson

Michael Barson

Benjamin H Wolf

Christopher Dearden

Bruce Robert Griffith

Thomas R Young

Bojana Vojinovic

Michael D Berg

Eduardo Vazquez

James R Stach

Benjamin Wolf

Devices, methods, and systems for a self-testing hazard sensing device are described herein. One device includes a sensor, a wire dipped in a material, a controller configured to provide a current to the wire to heat the material and generate aerosol and/or carbon monoxide, and an airflow generator configured to provide the aerosol and/or carbon monoxide to the sensor. The controller configured to determine whether the self-testing hazard sensing device is functioning properly using the aerosol and/or carbon monoxide provided to the sensor.

Self-testing hazard sensing device

Systems and methods of effectively communicating alarm conditions by making efficient use of the limited battery life in ambient condition detectors are provided. In some systems and methods, an ambient condition detector in a monitored region can be associated with a motion sensor. When the motion sensor detects motion in the monitored region, the detector can exit a soft alarm mode and enter a full alarm mode for a predetermined period of time.

Systems and methods of conserving battery life in ambient condition detectors

Gas detector

Housing for a detector

Detector

Growing community of inventors

Elgin, IL, United States of America

Dale H Johnson