System Sensor B501-WHITE 4 Inch Detector Base, Bright White The System Sensor B501-WHITE is a 4-inch intelligent detector base designed for use with compatible addressable smoke, heat, and multi-criteria detectors. Featuring a bright white finish and a low-profile design, it provides a clean, professional appearance while ensuring secure detector installation in commercial and institutional fire alarm systems. Designed for easy installation and maintenance, the B501-WHITE features a plug-in detector connection that allows detectors to be installed or replaced without rewiring. The base includes SEMS screw terminals for quick wiring and supports a variety of electrical box configurations, making it suitable for both new construction and retrofit projects. Its integrated detector locking feature helps prevent unauthorized removal, making the B501-WHITE an ideal choice for public buildings and other high-traffic environments. Key Features Intelligent detector base 4-inch low-profile design Bright white finish Compatible with intelligent smoke, heat, and multi-criteria detectors Plug-in detector installation Quick detector replacement without rewiring SEMS screw terminals for easy wiring Detector locking feature for added security Compatible with multiple electrical box configurations Durable, low-profile construction Ideal for new installations and retrofit projects Genuine System Sensor accessory Applications The System Sensor B501-WHITE is ideal for: Commercial buildings Office buildings Schools and universities Hospitals and healthcare facilities Hotels Retail stores Government buildings Industrial facilities Addressable fire alarm systems New construction and retrofit projects Specifications Manufacturer: System Sensor Model: B501-WHITE Product Type: Intelligent Detector Base Base Diameter: 4 inches Color: Bright White Mounting Style: Low profile Wiring Terminals: SEMS screw terminals Detector Installation: Plug-in Detector Locking Feature: Yes Mounting Compatibility: 4-inch square, 4-inch octagon, 3½-inch octagon, and single-gang electrical boxes Compatible With: System Sensor intelligent smoke, heat, and multi-criteria detectors Application: Addressable fire alarm systems Why Choose the System Sensor B501-WHITE? The System Sensor B501-WHITE provides a dependable and professional mounting solution for intelligent fire alarm detectors. Its bright white finish, plug-in design, secure locking feature, and compatibility with multiple detector types make installation and maintenance fast and efficient while ensuring reliable long-term performance in commercial fire alarm systems.