Patent ID: 9057631
Filing Date: 2015-06-16
Classification: G01D,G01R,G08B

Abstract:
1. A smoke detector with an easily-readable battery-life display comprises: a smoke detector; a battery power indicator; a reference resistor; said smoke detector comprises an enclosure and a battery; said battery power indicator comprises an ammeter and a display panel; said display panel comprises a status bar and a visual pointer; said enclosure comprises a topside and an underside; said underside being positioned opposite to said topside through said enclosure; said display panel being positioned on said underside; said battery, said ammeter, and said reference resistor being located within said enclosure; said ammeter and said reference resistor being electrically connected in parallel to said battery; said ammeter being electrically connected in series to said reference resistor; said display panel being electronically connected to said ammeter; said battery comprises a positive post and a negative post; said reference resistor being electrically connected to said positive post; and said ammeter being electrically connected to said negative post.