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Secutron MRI-4003-LF 400 Series Low Frequency Sounder Base

SKU: MRI-4003-LF Secutron
Image of 5T-MRI4003L
Product images for Secutron MRI-4003-LF 400 Series Low Frequency Sounder Base. 1 image(s) available. Click on image to view full size.

Key Features

  • Ensures NFPA 72 compliance for sleeping areas with a low-frequency 520 Hz alarm that improves wake response
  • Built-in sounder capability for MRI-4000 detectors reduces the need for separate horns and saves installation space
  • MRI-4003-LF compatibility minimizes wiring and labor costs while simplifying system integration
  • Configurable operation adapts to different life-safety layouts and monitoring requirements for flexible deployment
  • Compact, cost-efficient detector base designed for reliable performance in hotels, healthcare, dormitories and other monitored facilities

Quick Specifications

Product Model
MRI-4003-LF
Brand Name
Secutron
Product Type
Detector Base
Product Series
400
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Product information

MRI-4003-LF

Overview

Ensure reliable wake-up notification and code compliance where it matters most. The Secutron MRI-4003-LF low frequency sounder base is a purpose-built detector base that meets NFPA 72 requirements for sleeping areas, delivering a 520 Hz (+10%) low-frequency alarm tone proven to improve occupant response during emergencies. Designed for seamless integration with MRI-4000 series detectors, the base provides built-in sounding capability that eliminates separate horn devices, reducing cabinet space, wiring and installation time.

As a Secutron detector accessory, the MRI-4003-LF supports configurable operation to suit diverse security and fire monitoring applications across hotels, healthcare facilities, dormitories and multi-family housing. Its compact form factor and MRI-4000 compatibility make it ideal for system designers and installers seeking efficient, code-compliant solutions for life-safety and security monitoring. Specify the MRI-4003-LF sounder base to streamline installation and enhance emergency notification performance—add it to your next fire alarm or security system design.

Features

  • Ensures NFPA 72 compliance for sleeping areas with a low-frequency 520 Hz alarm that improves wake response
  • Built-in sounder capability for MRI-4000 detectors reduces the need for separate horns and saves installation space
  • MRI-4003-LF compatibility minimizes wiring and labor costs while simplifying system integration
  • Configurable operation adapts to different life-safety layouts and monitoring requirements for flexible deployment
  • Compact, cost-efficient detector base designed for reliable performance in hotels, healthcare, dormitories and other monitored facilities
4 of 4 specifications
Technical specifications for Secutron MRI-4003-LF 400 Series Low Frequency Sounder Base
General Information
Brand Name Secutron
Product Type Detector Base
Product Series 400
Manufacturer Part Number MRI-4003-LF

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SKU:
MRI-4003-LF
Manufacturer part:
MRI-4003-LF
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Returns require an approved RMA. Consult the linked return policy for deadlines and eligibility. For standard non-defective returns, eligible factory-sealed items carry a 15% restocking fee and customer-paid return shipping; open-box and used items are refused. Defective and DOA claims follow the policy's separate terms. Special orders and other exclusions are final sale.

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Secutron MRI-4003-LF 400 Series Low Frequency Sounder Base

MRI-4003-LF

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