Simplex Grinnell 4098-9733 Heat Detector Head

The Simplex Grinnell 4098-9733 Heat Detector Head with Dust Cover is a dedicated heat-sensing component used in commercial fire alarm systems. Identified by model 4098-9733, this head is designed to fit into compatible detector bases within Simplex Grinnell installations and to form the heat-sensing element of the system’s fire detection network. The included dust cover shields the sensing element from dust and contaminants during storage or installation, helping preserve sensitivity. As a heat detector head, it responds to elevated temperatures to trigger an alarm in appropriate configurations of a fire protection system. It is intended for applications where a heat-only sensor is required rather than a smoke or multi-criteria device and is typically used with the correct base and enclosure in a Simplex Grinnell setup. For proper replacement, confirm compatibility with your system’s base, wiring, and mounting requirements according to the site documentation. This head can serve as a spare or replacement in Simplex Grinnell fire alarm installations, providing continued heat-detection coverage when needed.