ETS SM1-EJ Flush mount Covert Ethernet Jack Style Omni-directional Microphone

The SM1-EJ from ETS is a high-performance, omni-directional, pre-amplified microphone designed for fixed location security applications. This unique dual Ethernet jack wall plate features one fully functional Ethernet jack alongside a microphone, providing a 25-foot pickup pattern in all directions. Its built-in limiter circuit automatically adjusts the output level during loud sound intervals, while selectable lo-cut and hi-cut filters significantly reduce background noise for clear audio capture. Connect it directly to switchers, mixers, or amplifiers, or use one of our versatile interface products for seamless connections to DVRs or remote monitoring equipment.

ETS SM1-EJ Microphone Features

• Omni-directional Pickup: 25’ pickup pattern ensures clear audio capture from all directions, making it ideal for surveillance.
• Functional Ethernet Jack: One working RJ jack allows for easy integration into existing Ethernet networks.
• Low Noise Pre-Amplifier: MOSFET technology minimizes noise for cleaner sound quality.
• Wide Frequency Response: 500Hz-13kHz ensures accurate sound reproduction across various audio frequencies.
• Selectable Filters: Jumper selectable hi-cut/low-cut filters limit frequency response to 900-6kHz, effectively reducing background noise.
• Volume Range Options: Jumper selectable volume range allows for “Line level” (0db) or “Microphone level” (-30db) settings for versatile audio control.
• Adjustable Gain: Gain can be adjusted in both volume ranges to cater to different audio environments.
• Unbalanced Output: 100 Ohm output facilitates easy connection to various audio equipment.
• Peak Limiter Circuit: Internal peak limiter with a 0.5 sec response time protects against audio distortion during loud sounds.
• Fast Cable Termination: 3 position Euro-style connector simplifies the process of connecting cables.
• Reverse Polarity Protection: Ensures device longevity and safety by protecting against incorrect power connections.
• Power Requirements: Operates on 12 to 24VDC @ 10mA, making it adaptable for various setups.
• On-board Voltage Regulator: Includes RFI filtering for enhanced performance in diverse environments.
• High S/N Ratio: More than 60DB ensures high-quality sound with minimal interference.
• Sensitivity: -45DB sensitivity captures subtle sounds effectively.
• Industrial Temperature Range: Operates efficiently in extreme conditions from –40 to 105C.

Detailed Specifications for ETS SM1-EJ