System Sensor BEAM1224S, 4-Wire Reflected Beam Smoke Detector with Test

System Sensor BEAM1224S, 4-Wire Reflected Beam Smoke Detector with Test

Manufacturer:System Sensor
Manufacturer Part#:BEAM1224S
Our Part#:BK-BEAM1224S
Stock Status: In Stock
Your Price:$801.29


System Sensor







Feature 5


Feature 7

Product Type:Beam Detector|Input Voltage:24VDC|Detection Type:Beam|Connection Type:System|Intended Use:Commercial/Industrial|Battery Backup:No|Interconnect:No|System Type:Conventional


  • 16- to 328-foot protection range
  • Single-ended, reflective design
  • User-friendly alignment procedure
  • Six user selectable sensitivity levels
  • Optional integral NFPA 72 sensitivity test feature
  • Removable plug-in terminal blocks
  • Digital display for easy alignment
  • Built-in automatic gain control compensates for signal deteriorationfrom dust build-up
  • Remote test station option
  • Paintable cover
  • Easiest alignment in the industry
  • Heater kits for transmitter/receiver and reflector option


System Sensor Model BEAM1224 is a four-wire conventional reflected beam smoke detector, which is uniquely suited for protecting open areas with high ceilings, where other methods of smoke detection are difficult to install and maintain. It is to be used with UL Listed compatible control panels only. An advantage of this single-ended reflective design is that it is much easier to install than the dual-ended projected beam detectors. Alignment is quickly accomplished via an optical sight and a two-digit signal strength meter incorporated into the product. Another advantage of the BEAM1224 is that it is listed for operation in temperatures ranging from 22°F to 131°F. This means it can be used in open areas to provide early warning in environments where temperature extremes may exceed the capability of other types of smoke detectors.

BEAM1224 consists of a transmitter/receiver unit and a reflector.When smoke enters the area between the unit and the reflector,the smoke causes a reduction in the signal. When the smoke level reaches the predetermined threshold, an alarm is activated.

BEAM1224 has four standard sensitivity selections, along with twoAcclimate™ settings (adjustable sensitivity). When one of the two Acclimate settings is selected, the detector will automatically adjust its sensitivity using advanced software algorithms to choose the optimum sensitivity for the specific environment.

BEAM1224S is also equipped with an integral sensitivity test feature,which consists of a test filter attached to a servo motor inside the detector optics. When the remote test station RTS451/RTS151 isused, the motor is activated and moves the filter into the pathway of the light beam, to test the detector's sensitivity. This integral sensitivity test feature allows the user to quickly and easily meet the annual maintenance and test requirements of NFPA 72.


Detection: Infrared Beam
Wiring: 4-wire
Operating Voltage: 15 to 32 VDC
Alarm Current: 38.5mA max. avg.
Standby Current: 17mA max. @ 24 VDC
Trouble Current: 8.5mA max. @ 24 VDC
Temperature Range: -22°F to 131°F (-30°C to 55°C)
Humidity Range: 10% to 93% RH noncondensing
Range: 16 ft. to 328 ft. (5m to 100m)
Sensitivity: Level 1 - 25%; Level 2 - 30%; Level 3 - 40%; Level 4 - 50%; Acclimate Level 1 - 30-50%; Acclimate Level 2 - 40-50%
Dimensions: Detector: 10" H x 7.5" W x 3.3" D (254mm x 191mm x 84mm); Reflector, 16-230ft.: 7.9" H x 9.1" W (200mm x 230mm)


Part Number Description
BEAMLRK Long range accessory kit (3) additional reflectors (Required for applications in excess of 230 ft [70 m])
BEAMMMK Multi-mount kit (Provides ceiling or wall mount capability with increased angular adjustment for either the beam or the reflector. When installed with the transmitter/receiver unit, BEAMSMK must be used as well)
BEAMSMK Surface mount kit for use with BEAMMMK
6500-MMK Heavy duty multi-mount kit (for installations prone to vibration or where there is difficulty in maintaining the set angle. When installed with the transmitter/receiver unit, 6500-SMK must be used as well)
BEAMHK Heater kit for transmitter/receiver unit (See electrical requirements above)
BEAMHKR Heater kit for reflector (See electrical requirements above)
RTS451KEY/RTS151KEY Remote test station with key lock
RTS451/RTS151 Remote test station used to initiate the NFPA sensitivity test function
The BEAM1224S is a 4-wire, single-ended, reflected type beam smoke detector that includes an 8-in reflector and an integral sensitivity test.

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