Simplex 2098-9806 — remote test station with keyswitch and red LED status indicator for TrueAlarm duct sensor housings.Duct smoke detectors sit on the side of an air handler, often above a hard ceiling or on a roof, where the annual NFPA 72 functional test is slow and sometimes unsafe. This station moves the test to an accessible wall: turning the key to TEST initiates an alarm on that duct sensor, so the panel, the fan shutdown and any damper interlocks exercise the way they would in a real smoke event. The LED tracks the housing status LED. Keyswitch plus red LED indicator on a single-gang stainless steel plate For Simplex 4098-9755 and 4098-9756 TrueAlarm duct sensor housings Mounts in a single-gang box, 3" H × 2" W × 2" D (76 × 51 × 51 mm) Simplex data sheet S4098-0030 The 2098-9808 is an indicator only — red LED, no keyswitch, no test function. Order the 9806 only where a remote test is actually required.
