Highest performance, uni-directional, boundary type, pre-amplified microphone for fixed location security applications. Benign appearance is Ideally suited for POS and interrogation / interview rooms.

 Features:

• Ultra low noise / high sensitivity
• Adjustable high and low frequency cut off filters. Useful for reducing back ground noise.
• Directional boundary pickup pattern helps reduce ambient noise.
• Adjustable automatic level control with a compression ratio range of1:1 to 10:1. The circuit automatically lowers the gain in loud environments and when quiet, raises the gain where faint audio sources such as people whispering can be heard.
• Universal Power input: Accepts
• Adjustable lo-cut filter: (500hz to 1Khz) Adjustable hi-cut filter: (5Khz to16Kz)
• Adjustable automatic gain control. (compression range 1:1-10:1).
• Adjustable output level (post AGC).
• 100 Ohm unbalanced output.
• Treble boost pre-emphasis.
• 3 position Euro-style connector makes cable termination fast and clean.
• Power: 12-60VDC or 9-42VAC @15mA.
• On-board voltage regulators and RFI filtering.
• Stainless steel plate mounts flush or on a single gang electrical box.
• Industrial temperature range: -40C to 105C.
• Dimensions: L 4.7” x W 2.9” H 0.9”
• Weight .1lbs
• Also available on white plastic plate. ETS Part Number: SM1-BP-LN
• Also available in a professional un-preamplified, balanced output, 12-48vdc phantom powered version PM1-BSS or PM1-B (white plastic plate).
• Directional 25' pickup pattern, -6db attenuation on all sides.
• Low noise MOSFET pre-amplifier.
• 80db S/N ratio, -28db sensitivity ECM capsule.
• 500Hz-16Khz Frequency response (hi-cut and lo-cut off)

Includes:

• SM1-BP-SS-LN Microphone.
• Mounting screws.
• Warning label.
• Installation instructions.

Wiring requirements:

• 2 conductor shielded (with drain wire) 22 gauge stranded. Max cable length 1500’