
The MRI-4003-LF low frequency sounder base is designed to meet NFPA 72 requirements for sleeping areas operating within a frequency range of 520 Hz + 10%, ensuring the most effective alarm to awake individuals during emergencies.
Main Features
- Comprehensive Compliance Fully meets NFPA 72 for low frequency sounder codes
- Optimal Alarm Tone
- Built-in alarm sounding capability for all MRI-4000 detectors
- Cost and Space efficiency
- Configurable Operation