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Audible signalling devices

Wide range of audible signalling devices for safety in hazardous areas
R. STAHL's audible signalling devices issue clear signals in many different forms, such as horns, loudspeakers and buzzers, which they use to provide effective protection for systems and people in hazardous areas – even in harsh, offshore environments.

Audible alarms provide a warning, alert or information, for example in the event of equipment malfunctions or safety issues, or when systems are starting up. R. STAHL supplies alarm signalling equipment for use in harsh environments that issues clearly audible signals tailored to your specific application. Our comprehensive product range offers you the choice between various device types with different volumes, alert levels and signals (which can also be set to comply with international regulations), for example in the form of loudspeakers, buzzers or alarm horns. Take a look at what we have to offer, and you will find we have just the warning device you need.

  • Wide variety of models, e.g. loudspeakers, omnidirectional horns, alarm horns and buzzers
  • Certification for international use
  • Choice of 32 tones, multi-stage alarms, volume adjustable up to 120 dB
  • Depending on which version you choose, they are suitable for fire protection applications, safety applications or process monitoring in any onshore or offshore installation

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11 Series (102 Products)

GRP Flameproof Audible Signal - 110 dB(A) Series YA6S

  • Corrosion-resistant,. GRP Ex d enclosure
  • Omnidirectional sounder max. 110 dB(A) @ 1m
  • 3-stage alarm (DC) / 2-stage alarm, operate independently of each other
  • Each with 32 selectable tones in accordance with international regulations
  • Independent tone selection using a DIL switch for each pitch
  • Volume control with 18 dB adjustment
  • Blocking diode for line monitoring
  • IP66 & IP67
  • Lightweight (3.64 kg)

Explosion Proof Audible Signal - 110 dB(A) Series YA60

  • Ex d enclosure made from seawater-resistant aluminium
  • Omnidirectional high output sounder 110 dB(A) @ 1 m
  • 2 stage alarm, independently selectable 2nd stage
  • Each with 32 selectable tones in accordance with international regulations
  • Independent tone selection using a DIL switch for each pitch
  • IP66 rated as standard / NEMA 4X (for UL variants)
  • Telephone initiate option availab

Intrinsically Safe Audible Signal - 100 dB (A) Series YO3IS

  • Flame retardant ABS enclosure
  • Ex ia electronics
  • Max sound output 100 dB (A) @ 1 m
  • IP55 rated as standard
  • 2 stage alarm, independently selectable 2nd stage
  • Each with 32 selectable tones in accordance with international regulations
  • Independent tone selection using a DIL switch for each pitch
  • Stainless steel fixings
  • 15 dB(A) volume control adjustment (only T4 models)
  • Monitoring facility
  • M20 cable entry

Intrinsically Safe Audible Signal - 100 dB (A) Series YO4IS

  • Flame retardant ABS enclosure
  • Ex ia electronics
  • Max sound output 100 dB (A) @ 1 m
  • IP55 rated as standard
  • 2 stage alarm, independently selectable 2nd stage
  • Each with 32 selectable tones in accordance with international regulations
  • Independent tone selection using a DIL switch for each pitch
  • Stainless steel fixings
  • 15 dB(A) volume control adjustment (only T4 models)
  • Monitoring facility
  • M20 cable entry pre-punched

Intrinsically Safe Audible Signal - 105 dB (A) Series YO5IS

  • Flame retardant ABS enclosure
  • Ex ia electronics
  • Max sound output 105 dB (A) @ 1 m
  • IP55 rated as standard
  • 2 stage alarm, independently selectable 2nd stage
  • Each with 32 selectable tones in accordance with international regulations
  • Independent tone selection using a DIL switch for each pitch
  • Stainless steel fixings
  • 15 dB(A) volume control adjustment (only T4 models)
  • Monitoring facility
  • M20 cable entry

Hazardous Area Audible Signal - 100 dB (A) Series YA11

  • Ex d enclosure made from seawater-resistant aluminium
  • Max. sound output 100 dB(A) @ 1 m
  • Single stage alarm
  • 32 sound tones available meeting international regulations
  • Low profile (28 mm) light weight aluminium enclosure
  • 3 metre (118”) 2 core pre wired cable fitted and prepared ready for installation
  • Panel sealing gasket and fixings provided
  • Low current consumption
  • High performance red paint finish as standard
  • IP66 rated as standard, NEMA 4X (for UL variants)
  • Lightweight

Flameproof Audible Signal – 115 dB (A) Series YA90

  • Corrosion-resistant, GRP Ex d enclosure
  • Max sound output 115 dB(A) @ 1 m
  • 2 stage alarm, independently selectable 2nd stage
  • Each with 32 selectable tones in accordance with international regulations
  • Independent tone selection using a DIL switch for each pitch
  • IP66 rated as standard
  • Monitoring facility (DC voltages only)

Hazardous Area Loudspeaker - 25 or 15 W Series 8494

  • Max. sound pressure level 121 dB(A)
  • Extreme temperature range -50 ... +60 °C
  • Degree of protection IP66 & 67
  • Corrosion-resistant enclosure made from antistatic polyamide
  • Stainless steel fixings
  • Ex e connection chamber
  • Spring clamp terminals

Signal Horn 105 dB (A) Series 8491/1 8491/2

  • Fixed signal tone
  • Volume max. 105 dB(A) @ 1 m
  • Installation by means of angle mounting
  • AC and DC versions
  • Signal horn Series 8491/1: with trumpet and connection cable
  • Signal Horn Series 8491/2: compact design with connection chamber and cable glandl

Horn Series 8492

  • 49 different signal sequences adjustable with internal DIP switches
  • Three different signal sequences can be selected through an external switch with a given DIP switch setting
  • Three PFEER signals: "General alarm", "Toxic gas alarm", "Prepare to abandon platform"
  • Volume adjustable
  • Robust plastic enclosure (ABS)
  • Synchronized tone sequence of parallel operated devices by quartz-controlled oscillator
  • Option: speaker module, programmable
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