Compare the Simplex 4099-9004, 4099-9006, and 2099-9756 manual pull stations, including their addressable or conventional system type, single-action or double-action operation, key features, applications, installation requirements, and maintenance considerations.

The Simplex TrueAlarm 4098-9775, 4098-9789, and 4098-9780 sensor bases provide secure mounting, addressable communication, remote LED support, and relay options for compatible smoke, heat, and multisensor devices. Proper selection, installation, testing, and routine inspection help ensure reliable fire alarm operation and system compatibility.