IP55 weather resistant, high performance, 1/2" knock out mount, omni-directional pre-amplified microphone. For use in outdoor applications and can withstand exposure to various weather conditions. Built in limiter circuit automatically lowers the output level during loud sound intervals. Selectable lo-cut and hi-cut filters significantly reduce background noise.

Features:

• Omni-directional 25’ pickup pattern.
• Low noise MOSFET pre-amplifier.
• Tamper resistant microphone
• Weather proof microphone (IP55)
• 500Hz-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) or "Microphone level" (-30db)
• 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
• 6ft standard length cord w/3.5mm connector
• Temperature range –40 to 85C
• ML1-WS Dimensions: L 2.1x D 1.1
• SM1-PA Dimensions: L 3.3 x W 2.0 x H 1.6
• Weight .1lbs

Includes:

• ML1-WS Microphone.
• SM1-PA Pre-Amplifier.
• 1/2” conduit lock nut
• Warning label.
• Installation instructions.

Options:

• See Pre-amplifier 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 for black or –WT for white enclosures. 
• WS1 external wind screen available for purchase separately.