It is not to be used to protect structures or personnel. This Smoke Sensor includes a System Sensor® model 4W-B, I3 Series, Photoelectric Smoke Detector. For complete safety, installation, operation, and maintenance information, refer to the I3 Series Installation and Maintenance Instructions on the System Sensor Web site, Inventory Smoke sensor with 3.05-m (10-ft) cable (1) 203-mm (8-in) tie wrap (10) о M4 x 8 pan head screw (2) o M6 black plastic cup washer (2) © M6 x 16 Phillips slot s