System Sensor RTS151KEY Key Remote Test and Reset Station

The System Sensor RTS151KEY is a key-operated remote test and reset station designed for compatible System Sensor duct smoke detectors and beam detectors. It provides remote detector testing, alarm status indication, and reset capability on supported models, allowing maintenance personnel to operate detectors from an accessible location. The station features a multicolor LED with green power and red alarm indications for compatible four-wire detectors, while two-wire configurations provide red alarm indication. Measuring 4.6 2.75 1.8 inches, the RTS151KEY supports single-gang mounting and replaces the discontinued RTS451KEY. The station is UL Listed and FM Approved.

System Sensor RTS151KEY Key-Operated Remote Test and Reset Station for Duct Smoke Detectors

The System Sensor RTS151KEY Remote Test Station provides convenient remote testing, alarm indication, and supported reset functions for compatible duct and beam smoke detection systems. Manufactured by System Sensor, a Honeywell brand, this key-operated fire detector accessory allows authorized maintenance personnel to initiate detector tests without accessing equipment installed above ceilings, inside mechanical rooms, or near HVAC ductwork. Its compact, light-colored enclosure features a three-position TEST, NORMAL, and RESET key switch and an integrated LED alarm indicator. The RTS151KEY is suitable for commercial offices, schools, healthcare facilities, hotels, industrial buildings, and other properties requiring accessible testing of remotely installed fire detection equipment.

The RTS151KEY incorporates a multicolor LED for detector power and alarm status, with indication determined by the connected detector configuration. On compatible four-wire duct detectors, a steady green indication confirms power and detector board presence, while red indicates an alarm condition. When connected to supported two-wire detectors, the LED provides red alarm indication. Turning the supplied key clockwise to the TEST position initiates the connected detector's remote test function, with a manufacturer-specified maximum alarm response time of 40 seconds, depending on the detector model. Turning the key counterclockwise to RESET can restore compatible detectors after testing or alarm activation. Reset functionality is model-dependent and must be verified against the connected detector's installation instructions.

The System Sensor RTS151KEY supports compatible conventional and intelligent duct smoke detector configurations, including specified D4120, DNR, D2, DH100, and DH400 Series installations. Manufacturer wiring diagrams identify the required connections for each detector type, including remote test, reset, alarm indication, and auxiliary power terminals. The green power LED operates at 14-35 VDC with a maximum current of 12 mA, while the red alarm LED operates at 2.8-32 VDC with a maximum current of 12 mA. System Sensor also specifies a 105 mA maximum total current requirement for applicable configurations. Certain duct detector models require a separately purchased test coil, including the DCOIL for D2 Series detectors and the appropriate coil accessory for designated DH400/DH500 models. The RTS151KEY performs remote test and indication functions but does not independently detect smoke or replace the fire alarm control panel.

The RTS151KEY measures 4.6 inches high, 2.75 inches wide, and 1.8 inches deep (117 70 46 mm) and weighs approximately 0.24 pounds (109 g). It mounts to a single-gang electrical box with a minimum depth of 2.5 inches or directly to a suitable wall or ceiling surface. The manufacturer specifies 14-18 AWG field wiring, an operating temperature range of 14 F to 140 F (-10 C to 60 C), and a maximum relative humidity of 95% non-condensing. The standard package includes one remote test station, two keys, and two mounting screws. The RTS151KEY replaces the earlier RTS451KEY and is documented with UL, FM, and CE approvals, along with a three-year limited manufacturer warranty. Installers should verify detector compatibility, auxiliary power requirements, test coil selection, and remote reset support before installation, following System Sensor documentation and applicable NFPA 72 requirements.