Knight Grade 3 92Db Tampered Door Extension Speaker Sounder  £9.12

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The I20 Grade III Intruder Alarm Internal or Extension Sounder from Knight Fire & Security is ideal for placement in alarm systems with mounted door contacts, enabling a high volume 92Db alarm tone to play when the operating range of the relevant contact has been breached. 

What is meant by the term Grade 3?
Grade 3 refers to the grade of intruder alarm system you have on the premises, especially if you are depending on the alarm system for insurance cover in your home or business. A Grade 3 Alarm basically means Medium to High Risk, Intruders are expected to be conversant with the alarm system and havce a comprehensive range of tools and portable electronic equipment.

Made from high quality plastics and fitting a high-power 16Ohm speaker in a low profile 120x120x50mm casing, the I20 is a true top quality sounder that is sure to give you the edge against thieves or vandals on your premises.

Main Features:

  • 92Db alarm sounder for door contact systems
  • 16Ohm extension speaker
  • Grade 3 security product
  • Tampered
  • High quality ABS/Mylar construction

Technical Specification:

  • Sound Pressure at 1M: 92Db 
  • Materials: ABS casing / Mylar speaker
  • Dimensions: 120mm x 120mm x 50mm
  • Temperature Range: -40°C - +50°C
  • ​Tampers: Microswitch
  • Speaker Diameter: 87mm
  • Speaker: Mylar – 16 Ohm, 12 Watt
  • Frequency range: 0.25-8Khz
  • Resonance: 550Hz ±110Hz
  • Sound Power Output: 97dB
  • Voltage Range: 0-125v AC Max 0-200v DC Max
  • Fittings: Wire Clamping Terminals & Concealed Fixing Screws

Specification Sheet

Installation of this product may require Alarm Cable

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