1. Smoke Detectors
Types of Smoke Detectors Ionization detectors have an ionization chamber and a source of ionizing radiation. ... Under smoke free conditions, the light beam crosses the top of the T in an uninterrupted straight line, not striking the photocell position at a right angle below the beam. ... The advantages are that less maintenance is required, due to the longevity of the lithium battery, however the battery should still be tested frequently. ... The disadvantages are the smoke detector should still be tested frequently. ... Both types of smoke detectors must pass the same test to be certifie...
- Word Count: 1727
- Approx Pages: 7
- Has Bibliography
- Grade Level: High School