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Alerting

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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Select the product lines that are applicable to your intended use.

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Min. ambient temperature
Max. ambient temperature
Type of protection (IP)
Description​
Rated operational voltage DC
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Sound stages
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Enclosure colour

11 Series (82 Products)

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

  • Corrosion resistant omnidirectional high output sounder
  • Ex d enclosure
  • Extreme temperature range
  • 3 stage alarm with independant tone selection for V DC systems
  • IP66 & IP67
  • Volume control with 18 dB adjustment
  • Lightweight (3.64 kg)
  • 32 internationally recognised selectable tones
  • Sound selection via DIL switch
  • Blocking diode for line monitoring
  • Stainless steel lens guard and bracket supplied as standard
  • ATEX & IECEx approval

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

  • Omnidirectional high output sounder 110 dB(A) / 1 m
  • 2 stage alarm, independently selectable 2nd stage
  • IP66 rated as standard
  • Aluminium enclosure with stainless steel fastenersl
  • 32 selectable tones meeting international regulations
  • Sound selection via DIL switch
  • Telephone initiate option availab

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

  • Max sound output 100 dB (A) / 1 m
  • IP55 rated as standard
  • 32 selectable tones meeting international regulations
  • Sound selection via DIL switch
  • Stainless steel fixings
  • Monitoring facility
  • Flame retardant ABS enclosure

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

  • Max sound output 100 dB (A) / 1 m
  • IP55 rated as standard
  • 32 selectable tones meeting international regulations
  • Sound selection via DIL switch
  • Stainless steel fixings
  • Monitoring facility
  • Flame retardant ABS enclosure

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

  • Max sound output 105 dB (A) / 1 m
  • IP56 rated as standard
  • 32 selectable tones meeting international regulations
  • Sound selection via DIL switch
  • Stainless steel fixings
  • Monitoring facility
  • Flame retardant ABS enclosure

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

  • Max sound output 100 dB(A) / 1 m
  • IP66, NEMA 4X rated as standard
  • 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

Flameproof Audible Signal – 115 dB (A) Series YA90

  • Max sound output 115 dB(A) / 1 m
  • 2 stage alarm, independently selectable 2nd stage
  • IP66 rated as standard
  • 32 selectable tones meeting international regulations
  • Light weight glass reinforced polyester (GRP) Ex enclosure
  • Sound selection via 5 way DIL switch
  • Adjustable stainless steel ratchet bracket providing positive setting
  • Enclosure finished in red high performance paint with ABS flare
  • Monitoring facility (DC voltages only)
  • Dual 20 mm gland entries as standard

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
  • Antistatic polyamid enclosure
  • Stainless steel fixings
  • Ex e terminal compartment
  • Spring clamp terminals
  • Corrosion resistant product

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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