NEW – MIX-4000 Series Low Frequency Sounder Base

Introducing the MIX-4003-LF Low Frequency Sounder Base! Enhance your alarm systems with built-in audible output for any MIX-4000 detector. Whether for retrofits or new construction, this sounder base meets NFPA 72 compliance for low-frequency sleeping room requirements and delivers a powerful 520 Hz tone.

Comprehensive Compliance 

Fully meets NFPA 72 for low frequency sleeping room requirements for both retrofits and new construction 

Optimal Alarm Tone

Emits a 520 Hz ± 10% square wave tone

Localized Alarm Sounding

Built-in alarm sounding capability for all MIX-4000 detectors

Cost and Space Efficiency

Eliminates the need for an external sounder, reducing installation costs and saving space

Configurable Operation

Audible tone patterns and sound levels are selectable via the MGC MP configurable tool at the FACP

  • Temporal
  • Continuous
  • 20 BPM
  • March

Versatile Mounting Options

Can be mounted on various electrical boxes, single gang, double gang, 4″ square and 4″ octagon boxes

  • Mounting plate included to simplify wiring for easier and faster installation
  • Listed for both wall and ceiling mounting

MODEL

MIX-4003-LF
LOW FREQUENCY SOUNDER BASE

  • The MIX-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.