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SONF1 Alarm Horn Sounder 2-21-010

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The SONF1 is a compact, high output, 100dB(A) alarm sounder. Low current consumption and high SPL in a robust fire retardant housing ensure it is suitable for general signalling applications including fire, security and process control.
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Alarm Horn Sounder

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Sonora range offers compact audio visual signaling for fire, industrial, process control and machine safety applications. The range features low current consumption combined with high performance. The SONF1 is available with two levels of sound level output and is CPR compliant (tested to EN54-3) for fire alarm use. Approved by VdS and UL.


Datasheet Datasheet.pdf
Sounder/horn installation DC voltages SONF1_DC_Inst__ISN0601-B_.pdf
Sounder/horn installation AC voltages SONF1_AC_Inst__ISN0602-A_.pdf
UL certifcate of compliance UL_CoC_-_20120402-S7995_A-Range__AL-Range.pdf
VdS certificate VdS_G205054_SON_2019-06-10.pdf
EC Certificate of Conformity 0786-CPD-20191_SONF1__SONF1_HO.pdf
Russian EAC Declaration of Conformity D-GB.GA05.B.12595-20-24.03.2025.pdf
Russian Fire certificate Russian_Fire_Certificate_-GB.25..03286.PDF
Russian Maritime register 19.00193.278.pdf
MED certificate MEDB00001EH.pdf
DNV MED Module D cert MEDD00000GV-revision1.pdf
Ingress Protection certificate 58D22760A_IP66_certificate_-_SONF1.pdf
Declaration of Conformity DC-020-Issue_B_SONF1_CPD.pdf
Declaration of Conformity DC-024_Issue_G_Sonora.pdf
Declaration of Performance DP_-_0786-CPD-20191-Issue_A_SONF1__SONF1-HO.pdf
2D drawing (PDF) SK0265_Issue_A.pdf
3D drawing (STEP) back box type S SK0265-S-3D_Issue_A.STEP
3D drawing (STEP) back box type A SK0265-A-3D_Issue_A.STEP
3D drawing (STEP) back box type M SK0265-M-3D_Issue_A.STEP
Hi-res product image 1 (TIFF) 2-21-010_SONF1-R.tif
Hi-res product image 2 (TIFF) 2-21-010_SONF1-G.tif
Lo-res product image 3 (JPG) 2-21-010_SONF1-W.tif
Lo-res product image 1 (JPG) 2-21-010_SONF1-R.jpg
Lo-res product image 2 (JPG) 2-21-010_SONF1-G.jpg


  • Automatic synchronisation on multi-sounder system.
  • Continuously rated.
  • Stainless steel fixings.
  • Mounting via internal BESA compatible fixing positions (standard version) or via external mounting lugs.
  • Duplicate cable terminations (in & out for daisy-chain installations).
  • Tropicalisation available on request.
  • Available with custom tone configurations and frequencies.


Maximum output: 100dB(A) @ 1 metre [91dB(A) @ 10ft/3m]
Nominal output: 99dB(A) @ 1m +/- 3dB – Tone 1 [90dB(A) @ 10ft/3m]
No. of tones: 10 (UKOOA / PFEER compliant)
No. of stages: 2 (AC voltage variants 1 stage)
Volume control: On board potentiometer
Effective range: 30m/98.4ft @ 1KHz
Voltages DC: 24V dc (10-30V dc) Reverse polarity diode protection on DC units.
MED version: 20-30V dc
Voltages AC: 24V ac; 115V ac; 230V ac
Ingress protection: IP66 (UL version Type 13 & 3R )
Housing material: High impact UL94 V0 & 5VA FR ABS
Colour: Red (RAL3000), grey (RAL7038) & white.
Cable entries: 4 x M20 clearance gland knockouts 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°C [68°F]
Vibration Test: 35 cycles per second 0.01” for a duration 4Hr (UL464)
Jarring Test: 5ft/lb Impact (UL464)
Impact Test: 3x 1lb @ 5ft (UL464)
Weight: 0.30kg/0.66Ibs

Part Codes

Version: Part code:
24V dc SONF1DC24[b][x]
24V ac SONF1AC24[b][x]
115V ac SONF1AC115[b][x]
230V ac SONF1AC230[b][x]
[b] = Back box type: No identifier: Sonora type – 3 x side & 1 x rear 20mm knockouts
A: A100 type with lugs – 2 x side & 1 x rear 20mm knockouts
M: Multi type with lugs – 1 x side 20mm entry with stopping plug
[x] = Enclosure colour: G: Grey (RAL7038)
R: Red (RAL3000)
W: White
Suffix part number with ‘-UL’ for UL approved version
Suffix part number with ‘-M’ for MED approved version [24V dc unit only]

Alarm sounder

Version: Voltage: Current:
24V dc 10-30V dc
MED version: 20-30V dc
24V ac 50/60Hz +/-10% 40mA
115V ac 50/60Hz +/-10% 13mA
230V ac 50/60Hz +/-10% 13mA


  • VdS approved: EN54-3 (CPD 89/106/EEC).
  • UL & cULs approved: General signalling use.
  • GOST-R approved. Cert: POCC GB.JB05.H00144.
  • Marine Equipment Directive (MED) Certificate: MEDB00001EH

Tone Table

Stage 1 WAV file Frequency Description Stage 2
T 1 /system/1/assets/files/000/000/419/419/e353c86c4/original/TF002.WAV 800/1000Hz @ 0.25 sec Alternating T 8
T 2 /system/1/assets/files/000/000/417/417/abf396de0/original/TF003.WAV 500/1200Hz @ 0.3Hz 0.5 sec Slow Whoop T 1
T 3 /system/1/assets/files/000/000/386/386/ceb4e488c/original/TF009.WAV 1200/500Hz @ 1Hz – DIN / PFEER P.T.A.P. T 8
T 4 /system/1/assets/files/000/000/382/382/2c2978b6a/original/TF017.WAV 544Hz (100mS)/440Hz (400mS) – NF S 32-001 T 9
T 5 /system/1/assets/files/000/000/395/395/631e82dc8/original/TF026.WAV Bell T 1
T 6 /system/1/assets/files/000/000/392/392/68d5d1294/original/TF029.WAV 800/1000Hz @ 7Hz Sweeping T 8
T 7 /system/1/assets/files/000/000/400/400/aba6c8a51/original/TF036.WAV 500-1200Hz 3.75sec /0.25sec. Australian Evac. T 10
T 8 /system/1/assets/files/000/000/405/405/214ccf82a/original/TF037.WAV 1000Hz Continuous – PFEER Toxic Gas
T 9 /system/1/assets/files/000/000/390/390/10abe0caa/original/TF027.WAV Continuous 554Hz
T 10 /system/1/assets/files/000/000/402/402/9168c8c48/original/TF035.WAV 420Hz @ 0.625 sec Australian Alert
AC Version (Single stage only):
S1 WAV File Description
T 1 /system/1/assets/files/000/000/419/419/e353c86c4/original/TF002.WAV 800/1000Hz @ 0.25 sec Alternating
T 2 /system/1/assets/files/000/000/417/417/abf396de0/original/TF003.WAV 500/1200Hz @ 0.3Hz 0.5 sec Slow Whoop
T 3 /system/1/assets/files/000/000/386/386/ceb4e488c/original/TF009.WAV 1200/500Hz @ 1Hz – DIN / PFEER P.T.A.P.
T 4 /system/1/assets/files/000/000/382/382/2c2978b6a/original/TF017.WAV 544Hz (100mS)/440Hz (400mS) – NF S 32-001
T 5 /system/1/assets/files/000/000/405/405/214ccf82a/original/TF037.WAV 1000Hz Continuous – PFEER Toxic Gas
T 6 /system/1/assets/files/000/000/395/395/631e82dc8/original/TF026.WAV Bell
T 7 /system/1/assets/files/000/000/392/392/68d5d1294/original/TF029.WAV 800/1000Hz @ 7Hz Sweeping
T 8 /system/1/assets/files/000/000/398/398/7c1bf5e00/original/TF025.WAV 2400/2900Hz @ 50Hz Sweeping
T 9 /system/1/assets/files/000/000/402/402/9168c8c48/original/TF035.WAV 420Hz @ 0.625 sec Australian Alert
T 10 /system/1/assets/files/000/000/400/400/aba6c8a51/original/TF036.WAV 500-1200Hz 3.75sec /0.25sec. Australian Evac.
Country specific or custom tone configurations and alarm frequencies are available upon request.

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