AB105STR Alarm Sounder & Xenon Strobe

  • Automatic synchronisation on multi-sounder system.
  • Continuously rated.
  • Stainless steel fixings.
  • Unit can be mounted using external lugs or internal BESA compatible fixing positions.
  • Duplicate cable terminations (in & out for daisy-chain installations).
  • Available with synchronised flash.
  • Available with multi-frequency function.
  • Tropicalisation available on request.
  • Available with custom tone configurations and frequencies.
  • ‘Programmable’ version available:
    - 45 alarm tones
    - 4 remotely selectable stages
    - Any tone can be assigned to any stage
    - User configurable continuous frequency tone


  • Alarm sounder (A105N) VdS approved: EN54-3 (CPD 89/106/EEC).
AB105STR Alarm Sounder & Xenon Strobe
Eac-logo Vds-approval Ce-approval

AB105STR Alarm Sounder & Xenon Strobe

The AB105STR combines a compact high output 112dB(A) alarm sounder with a powerful 5J Xenon strobe warning beacon.

The beacon and sounder can be operated from the same power source or controlled individually.
The AB105STR Xenon beacon component features an automatically synchronised flash rate of 1Hz (60 flashes per minute) as standard. The DC voltage versions also have user selectable 1.5Hz (90 flashes per minute) and double-strike flash rates. The double strike flash rate can be remotely activated via a third wire (as can alternative alarm tones on the horn sounder) enabling a audible and visual communication of a two stage alarm condition.


Maximum output: 112dB(A)@1m [103dB(A)@10ft/3m]
Nominal output: 105dB(A)@1m +/-3dB Tone 2 {96dB(A)@10ft/3m]
No. of tones: 32 (UKOOA / PFEER compliant)
No. of stages: Alarm horn:3, Xenon Beacon (DC only):2
Double strike pattern can be remotely switched
Volume control: Max. 105dB(A); Min. 96dB(A) - Tone 2
Effective range: 60m/197ft @ 1KHz
Stage switching: Negative (Reverse polarity switching on DC units)
Energy: 5 Joules (5Ws)
Flash rate: 1Hz (60 fpm)
DC units: Optionally 1.5Hz & double strike
Synchronisation: 1Hz flash rate automatically synchronised
Peak Candela: 500,000 cd - calculated from energy (J)
Eff. Intensity cd: 250 cd - calculated from energy (J)
Peak Candela: 49,788 cd* - measured ref. to I.E.S.
Eff. Intensity cd: 125 cd* - measured ref. to I.E.S.
Tube life: 70% emissions after 8 million flashes
Voltages DC: 24V dc (10-30V dc); 48V dc (35-60V dc)
[DC units can use 24V ac for single stage applications.]
Voltages AC: 24V ac; 115V ac; 230V ac
Ingress protection: IP65
Housing material: High impact UL94 V0 & 5VA FR ABS
Lens material: UV stable PC UL94 V0 FR
Bayonet lens fixing , Anti-tamper locking screw.
Cable entries: 2 x M20 clearance gland entries in side & back
Terminals: 0.5 to 1.5mm² cables.
Operating temp: -25 to +55°C [-13° to +131°F]
Storage temp: -40 to +70°C [-40° to +158°F]
Relative humidity: 90% at 20° [68°F]
Weight: DC: 1.00kg/2.2Ibs AC:1.25kg/2.75Ibs
Candela measurements representative of performance with clear lens at optimum voltage.
SPL data +/-3dB(A). Measured at optimum voltage.

Part Codes

Version: Part code:
12V dc AB105STRDC12[x]/[y]
24V dc AB105STRDC24[x]/[y]
48V dc AB105STRDC48[x]/[y]
24V ac AB105STRAC24[x]/[y]
115V ac AB105STRAC115[x]/[y]
230V ac AB105STRAC230[x]/[y]
[x] = Housing colour: G: Grey R: Red
[y] = Lens colour: A: Amber B: Blue C: Clear
G: Green R: Red Y: Yellow
Suffix part number with ‘-P’ for programmable, 4 stage, 45 tone version.

Alarm sounder

Version: Voltage: Current:
12V dc 10-14V dc 25mA*
24V dc 20-28V dc 25mA*
48V dc 42-54V dc 50mA*
115V ac 50/60Hz +/-10% 20mA
230V ac 50/60Hz +/-10% 15mA
24V ac 50/60Hz +/-10% 40mA
* current at nominal voltage on Tone 2

xenon beacon

Version: Voltage: Current:
12V dc 10-14V dc 500mA
24V dc 20-28V dc 250mA
48V dc 42-54V dc 175mA
115V ac 50/60Hz +/-10% 70mA
230V ac 50/60Hz +/-10% 35mA
24V ac 50/60Hz +/-10% 300mA

Tone Table

Stage 1 WAV file Frequency Description. (Stg 2 (Stg 3
T 1 /system/1/assets/files/000/000/415/415/246615edd/original/TF001.WAV 340 Hz Continuous T 2 T 5
T 2 /system/1/assets/files/000/000/419/419/e353c86c4/original/TF002.WAV 800/1000Hz @ 0.25 sec Alternating T 17 T 5
T 3 /system/1/assets/files/000/000/417/417/abf396de0/original/TF003.WAV 500/1200Hz @ 0.3Hz 0.5 sec Slow Whoop T 2 T 5
T 4 /system/1/assets/files/000/000/420/420/50f9ee7a7/original/TF004.WAV 800/1000Hz @ 1Hz Sweeping T 6 T 5
T 5 /system/1/assets/files/000/000/421/421/b578af8a9/original/TF005.WAV 2400Hz Continuous T 3 T 20
T 6 /system/1/assets/files/000/000/422/422/42b72dd93/original/TF006.WAV 2400/2900Hz @ 7Hz Sweeping T 7 T 5
T 7 /system/1/assets/files/000/000/373/373/a686b0abe/original/TF007.WAV 2400/2900Hz @ 1Hz Sweeping T 10 T 5
T 8 /system/1/assets/files/000/000/376/376/00cd26f9e/original/TF008.WAV 500/1200/500Hz @ 0.3Hz Sweeping T 2 T 5
T 9 /system/1/assets/files/000/000/386/386/ceb4e488c/original/TF009.WAV 1200/500Hz @ 1Hz - DIN / PFEER P.T.A.P. T 15 T 2
T 10 /system/1/assets/files/000/000/374/374/021ee6540/original/TF010.WAV 2400/2900Hz @ 2Hz Alternating T 7 T 5
T 11 /system/1/assets/files/000/000/377/377/ac5498db0/original/TF011.WAV 1000Hz @ 1Hz Intermittent T 2 T 5
T 12 /system/1/assets/files/000/000/375/375/771bd7a3e/original/TF012.WAV 800/1000Hz @ 0.875Hz Alternating T 4 T 5
T 13 /system/1/assets/files/000/000/378/378/6380218ec/original/TF013.WAV 2400Hz @ 1Hz Intermittent T 15 T 5
T 14 /system/1/assets/files/000/000/379/379/51c1bb5a9/original/TF014.WAV 800Hz 0.25sec on, 1 sec off Intermittent T 4 T 5
T 15 /system/1/assets/files/000/000/380/380/06feaa7b3/original/TF015.WAV 800Hz Continuous T 2 T 5
T 16 /system/1/assets/files/000/000/381/381/93f51c79a/original/TF016.WAV 660Hz 150mS on, 150mS off Intermittent T 18 T 5
T 17 /system/1/assets/files/000/000/382/382/2c2978b6a/original/TF017.WAV 544Hz (100mS)/440Hz (400mS) - NF S 32-001 T 2 T 27
T 18 /system/1/assets/files/000/000/397/397/d6d84d0c3/original/TF018.WAV 660Hz 1.8sec on, 1.8sec off Intermittent T 2 T 5
T 19 /system/1/assets/files/000/000/383/383/11797b764/original/TF019.WAV 1.4KHz-1.6KHz 1s, 1.6KHz-1.4KHz 0.5s -NFC48-265 T 2 T 5
T 20 /system/1/assets/files/000/000/384/384/5c30f9f4d/original/TF020.WAV 660Hz Continuous T 2 T 5
T 21 /system/1/assets/files/000/000/385/385/a85a0a356/original/TF021.WAV 554Hz/440Hz @ 1Hz Alternating T 2 T 5
T 22 /system/1/assets/files/000/000/387/387/d33e565a9/original/TF022.WAV 544Hz @ 0.875 sec. Intermittent T 2 T 5
T 23 /system/1/assets/files/000/000/388/388/b4cf9203e/original/TF023.WAV 800Hz @ 2Hz Intermittent T 6 T 5
T 24 /system/1/assets/files/000/000/389/389/68683d240/original/TF024.WAV 800/1000Hz @ 50Hz Sweeping T 29 T 5
T 25 /system/1/assets/files/000/000/398/398/7c1bf5e00/original/TF025.WAV 2400/2900Hz @ 50Hz Sweeping T 29 T 5
T 26 /system/1/assets/files/000/000/395/395/631e82dc8/original/TF026.WAV Bell T 2 T 15
T 27 /system/1/assets/files/000/000/390/390/10abe0caa/original/TF027.WAV 554Hz Continuous T 26 T 5
T 28 /system/1/assets/files/000/000/391/391/5f7a58b54/original/TF028.WAV 440Hz Continuous T 2 T 5
T 29 /system/1/assets/files/000/000/392/392/68d5d1294/original/TF029.WAV 800/1000Hz @ 7Hz Sweeping T 7 T 5
T 30 /system/1/assets/files/000/000/393/393/744c6f53f/original/TF030.WAV 300Hz Continuous T 2 T 5
T 31 /system/1/assets/files/000/000/394/394/1bfee2f1b/original/TF031.WAV 660/1200Hz @ 1Hz Sweeping T 26 T 5
T 32 /system/1/assets/files/000/000/396/396/d64fbc9d0/original/TF032.WAV Two T chime. T 26 T 15
Country specific or custom tone configurations and alarm frequencies are available upon request.