The SM 1L-P is an industrial microphone system which can be integrated on various heavy duty applications, suitable for wide areas recordings, level sensing, and all applications where an omni directional boundary mic is needed. The unit comes with 2 different size cable gland so it can be used with different kinds of cables avoiding the use of possible junction boxes.

Technical Features

Microphone type: condenser (electret)
Mic. polar pattern: omnidirectional
Frequency response: 90 Hz – 15 KHz
Sensitivity: – 65.00dB +/- 2dB at 1 KHz
Impedance: 200Ω
S/N ratio: 42dB (A)
Max SPL: 122 (THD 1%)
Output: 850mV RMS
Power: 12VDC PSU
Power Test: push button \red LED
Terminations: 4 post barrier strip screw terminal
Dimensions: 96mm (H) x 40mm (W) x 22mm (D)
Cabinet: light galvanized steel
Weight: 80g
Color: light-grey (RAL 7040)


Generic paging system with costant voltage speaker lines

  • Amplifer with transformer that drives 100V lines
  • Ambient microphones for automatic volume control
  • Centralized system for live control and status monitoring