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      Microphone ME-3

      Universal broadband electret microphone for LunaBat® detectors and LunARU® field recorders.
      (and for other equipment with optional adapters as an audio or ultrasonic microphone – contact with Manufacturer)

      ME3fr     MEback

      Microphone with electret transducer for audio and ultrasonic applications, specially designed for pre- and post-investment monitoring, taking into account all species of bats present in Poland (also horseshoes). The front of the microphone has been designed so that the LunaBat frequency and directional waveform characteristics are as close as possible to the characteristics of the popular Pettersson D-230 detector but have increased sensitivity in the 30-65kHz range and above 75-80kHz:

      ME3progi

      The Sensor Knowles (EK series) used in the microphone has the relatively highest resistance to increased humidity from all ME microphones. The design of the microphone is based on a professional twisted industrial connector to provide a reliable and stable electrical connection.
      There is also a special version of this microphone called ME-3x with the same sensor, but mounted and sealed inside the hermetic connector compatible with the standard IP-67. Small volume it conferred contained within the permitted use of the absence of a pressure-equalizing bore and the use of pressures within the 700-1300hPa.

      Technical specification:

      Frequency response* (+/-6dB) ……………………………………………………………………………… 60 Hz – 30 kHz
      Frequency response* (+/-12dB) ……………………………………………………………………………. 50 Hz – 54 kHz
      Frequency response* (+/-24dB) ………………………………………………………………………….. 15 Hz – 135 kHz
      Self noise floor (0dB=94dB SPL, B=20Hz-100kHz …………………………………………………… 26 dB (+/-3dB)
      Sensitivity (dla 1kHz, 94dB SPL) …………………………………………………………………………………………..15 mV
      Directional pattern ……………………………………………………………………………………. quasi-omnidirectional
      Supply voltage ……………………………………………………………………………………………………………………. 1-10V
      Current consumption (Uz=5V) …………………………………………………………………………………………..0.05 mA
      Connector ………………………………………………………………………. gold plated 5-pin twisted (Binder, IP-40)


      * – Given the frequency response of preamplified microphones without additional filters, when connected to a receiver (detectors, recorders, etc.), the actual frequency response depends on the filters used in the receivers.