The SmartSMS sound masking system is equipped with an adaptative adjustment system.
The ambient noise in a zone is measured and the masking sound level is adjusted based on this measurement.
The SMS-SEN Sound Level Sensor measures the ambient noise level in a zone. It is installed through a 3/8″ (9.5 mm) hole in acoustic tile. In the case of an open ceiling, it can be attached to the structrue.
Typically, one sensor covers 1,000 sq. ft. and up to 8 sensors can be installed in one zone.
Back Electret Type Designed for High Resistance to Vibrations
High Signal-to-Noise Ratio
High Sensitivity Type
Sensitivity: -35±4 dB(0 dB = 1V/pa, 1 kHz)
Frequency Range: 20-20,000 Hz
Length: 2-3/4″ approx.
Standard Operation Voltage: 3 volts
Current Consumption: Max 0.5 mA
S/N Ratio: More than 62 dB
Measurement Range: 35 to 95 dB at 17 mV/Pa
Connector Type: BNC
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