High performance, Omni-directional, preamplified microphone for fixed location security applications. 25’ pickup pattern in all directions. Built in limiter circuit automatically lowers the output level during loud sound intervals. Selectable Hi cut and low cut filters significantly reduce background noise. Flexible plastic plate mounts flush or on a single gang electrical box. Connects directly to our switcher / mixer / amplifiers or use one of our many interface products to make fast and clean connections to DVRs, IP cameras and remote monitoring equipment.

Features:

• Omni-directional 25’ pickup pattern. Low noise MOSFET pre-amplifier.
• 300Hz-16Khz Frequency response.
• Switch selectable hi-cut/low-cut filters limit frequency response to 900-6khz significantly reducing background noise.
• Switch selectable volume range: "Line level" (0db)
• Adjustable gain in both volume ranges.
• 100 Ohm unbalanced output. Internal peak limiter circuit (.5 sec response) 3 position terminal block. PTCC fused and reverse polarity protected Power: 12 to 24VDC @ 10mA.
• On-board voltage regulator and RFI filtering.
• S/N ratio: more than 60DB Sensitivity –45DB Temperature range –40 to 85C.
• Flexible ABS plastic plate mounts flush or on a single gang electrical box.
• Dimensions: L 4.7 x W 2.9 H 0.9
• Weight .03lbs

Includes:

• SM1 flush mount microphone.
• Mounting screws.
• Warning label.
• Installation instructions.

Options:

• See Pre-amplifier board selection guide for alternate pre-amplifier form factors.
• Add –LN to P/N for ultra low noise (80db) and high sensitivity (–28db) microphone capsule
• Add –BK to P/N for black plate or –SS for stainless steel.