Smoke detector having an integral piezo-electric buzzer

Smoke detector having variable level sensitivity

Smoke detector having variable level sensitivity

Smoke detector including ambient temperature compensation

Smoke detector including an indicator for indicating a missing p

Smoke detector maintenance indication method and apparatus

Smoke detector of the ionization type

Smoke detector protector

Smoke detector sensitivity testing apparatus

Smoke detector switch indicator

Smoke detector system with self-diagnostic capabilities and repl

Smoke detector test device and method for manufacture

Smoke detector with advanced safety features

Smoke detector with dark chamber

Smoke detector with delayed alarm after change to stand-by power

Smoke detector with digital display

Smoke detector with dual sensors

Smoke detector with improved testing

Smoke detector with masking shield

Smoke detector with remote testing, shutoff and powering means