SoundEar® 4-400
Discreet, Accurate Noise Monitoring for Hospitals, Offices and Public Spaces.
*When ordering in bulk, please contact us for bulk pricing.
The SoundEar® 4-400 helps staff see noise levels as they happen, creating the foundation for a quieter, calmer environment for patients, residents, students and workers alike. The illuminated ear symbol shifts from green to amber to red as levels rise, giving people an immediate, wordless prompt to lower their voices or change what they are doing. No alarms, no announcements, just a visual cue that works in the environments where a loud warning would defeat the purpose.
Built for continuous background monitoring rather than heavy industry, the 4-400 measures LAF, LAS and LCpeak simultaneously alongside LAeq at 1 second, 15 minute and 1 hour intervals, with 0.1 dB resolution across a 30 dB to 120 dB range. Integrated WiFi sends data straight to the SoundEar Cloud, so you can receive email alerts when levels pass your set threshold and automated noise reports for analysis and compliance.
IMPORTANT: The SoundEar® 4-400 is a dedicated network model and does not operate in stand-alone mode. It requires a WiFi connection to function, and units require additional programming and configuration. We will need to touch base with you to go through the finer details of your network setup and requirements.
Designed and tested to the medical electrical equipment standards IEC 60601-1 and 60601-1-2, making it suitable for use in wards, critical care and other clinical settings.
Wall-mounted display shows:
🔴 RED – noise level has exceeded the configured threshold, action needed to reduce noise
🟡 YELLOW – caution: noise levels are approaching the preset limit
🟢 GREEN – noise levels are below the configured threshold and actively monitored
🔢 Mini display can be set to show LAeq (1 second), the alarm level, a clock, or switched off entirely
For use in:
Hospitals, neonatal units and aged care
Schools, libraries and lecture theatres
Offices and call centres
Clubs, pubs and entertainment venues
Shopping centres and public spaces
Any location with reliable WiFi coverage, as the 4-400 does not operate in stand-alone mode
See SoundEar 4 XL for factories, workshops and heavy industrial settings
Features:
Meets the performance requirements of IEC 61672-1 and ANSI S1.43
Approx. A4 page size. 256mm x 205mm x 45mm
Easy wall mount
Built-in noise logger with 4 MB internal memory, approximately 60 days of log time
Measures LAF, LAS and LCpeak simultaneously, plus LAeq at 1 second, 15 minute and 1 hour intervals
Has a measuring range from 30 dB to 120 dB, with 0.1 dB resolution and +/- 0.5 dB deviation
Frequency range of 20 Hz to 20 kHz, with A-weighting (RMS) and C-weighting (Peak)
Slow (1s) and Fast (125ms) time weighting, 90 dB dynamic range with peak detection
Designed and tested to medical electrical equipment standards IEC 60601-1 and 60601-1-2, suitable for clinical settings
Configure the front mini display to show LAeq (1 second), alarm level, clock, or switched off
Integrated 802.11 b/g/n WiFi with on-board antenna, no additional equipment needed
Email alerts when noise levels pass your configured threshold
Automated noise reports for analysis and compliance
USB-C for power supply (5VDC, max 2.5W) and PC connection for log transfer and configuration
Shockproof acrylic cabinet, IP 42 rated for dampness and dust
High-precision real time clock with CR2032 battery backup
Operating temperature range of 0°C to 50°C, weighs 1.5 kg
