ETS SM1 Flush Mount Omni Directional Microphone

The SM1 from ETS is a high performance, omni-directional, pre-amplified microphone designed for fixed location security applications. With a 25’ pickup pattern in all directions, it features a built-in limiter circuit that automatically lowers the output level during loud sound intervals, ensuring clarity of audio. The selectable hi-cut and low-cut filters significantly reduce background noise, while its flexible mounting options make it easy to install in various environments.

ETS SM1 Camera Features

Features

• Omni-directional Pickup: 25’ pickup pattern captures sound from all directions, ensuring comprehensive audio surveillance.
• Low Noise Pre-amplifier: High-performance MOSFET pre-amplifier reduces unwanted electronic noise for clear sound quality.
• Wide Frequency Response: Supports 500Hz to 13kHz frequency response for accurate audio reproduction across a broad range.
• Hi-Cut/Low-Cut Filters: Jumper selectable filters limit frequency response to 900-6kHz, significantly reducing background noise.
• Selectable Volume Range: Choose between "Line level" (0db) or "Microphone level" (-30db) for flexible audio settings.
• Adjustable Gain: Control gain in both volume ranges to optimize microphone sensitivity for various environments.
• Unbalanced Output: 100 Ohm output ensures compatibility with a range of audio devices.
• Internal Peak Limiter: The limiter circuit responds in 0.5 seconds to prevent distortion during loud intervals.
• Fast Cable Termination: 3 position Euro-style connector allows quick and clean connections.
• Reverse Polarity Protection: Protects the microphone from incorrect power supply connections.
• Power Requirements: Operates on 12 to 24VDC at 10mA, ensuring low power consumption.
• Voltage Regulator and RFI Filtering: On-board features enhance performance and reduce radio frequency interference.
• Signal-to-Noise Ratio: Greater than 60DB for high-quality audio transmission.
• Sensitivity: -45DB for optimal sound capture in various applications.
• Industrial Temperature Range: Functional from -40 to 105C, making it suitable for tough environments.
• Flexible Mounting Options: The included plastic plate allows flush mounting or installation on a single gang electrical box.
• Compact Dimensions: Measuring L 4.7” x W 2.9” x H 0.9”, it fits into tight spaces without compromising performance.

ETS SM1 Detailed Specifications