Edwards EST SIGA-OSHD 22/01 which is selectable with a

which is selectable with a conveniently-located switch

As dual listed appliances

And these models accommodate four-square back boxes when used with a square to round plaster ring

New to the DSC family of wireless products

Edwards EST SIGA-OSHD 22/01 which is selectable with aThe Edwards EST SIGA OSHD Intelligent Multisensor Smoke and Heat Detector provides an optical smoke sensor and a rate of rise heat sensor with a fixed temperature setting. Together these sensors efficiently detect smoldering fires, as well as fast flaming fires. The Siga OSHD detector is compatible only with control panels using a Signature Loop controller.