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SoundEar 3


Measure, monitor, and manage noise in hospitals and facilities
In many hospitals, patients and staff complain about too much noise. This includes noise from medical equipment, staff, visitors, etc.
Noisy environments and poor acoustics within modern hospitals delay recovery and rehabilitation processes, resulting in unnecessarily long treatments. Therefore, hospitals of the future focus on lower noise levels.
Not only does a good auditory environment facilitate recovery, it also leads to better sleep patterns and higher levels of patient and staff well being.
Sound Ear II - Rear



Technical data
IEC61672-2-2002. Type 2, ANSI S1, 4 Type 260601-1: medical electrical equipment - Part 1: general requirements for basic safety and essential performance.
60601-1-2: medical electrical equipment - Part 1-2: general requirements for basic safety and essential performance.
Display Data:
dB(A) slow, Leq(A)15, alarm settings, temp, clock
Internal Memory:
16MB (128MBit) (5-90 days log time, depending on log settings)
Mechanical features:
Cabinet: shockproof acrylic
Measurements: length 265 mm, width 205 mm, height 46 mm
Weight: 3.3 lbs. (1.5 kg)
Electrical features:
Power supply: 5VDC (micro USB) / 24VDC (screw terminal)
Current consumption: max 2.5W
Light setting: fullly configurable through SoundEar® software including night setting.
2x (1 for dB A + 1 for dB C): either 0-10V or 4-20mA outputs
USB Ports:
Micro USB (Power &PC), USB OTG (log, config)
During operation: 0 °C to 50 °C
When stored/during transport: -20°C to 60°C
Dampness and dust:
IP 42.
Measurement parameters
20 Hz to 20 kHz
Measuring Level Range
30 dB to 120 dB
Frequency Weighting
dB(A) & dB (C) 
Time Weighting
Slow (1 sec) & (125mS)
+/- 0.5 dB
Dynamic Range RMS:
90 dB & Peak Detection
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