ETS SM1-SDU Surface mount, Covert Smoke Detector Style, Uni-directional Microphone

ETS SM1-SDU is a high-performance unidirectional pre-amplified microphone designed to minimize side noise, making it ideal for covert applications. Its sleek housing mimics a modern smoke detector, allowing for discreet installation. This microphone features built-in limiter circuits and selectable filters that enhance audio clarity while maintaining a low profile.

ETS SM1-SDU Features

• Unidirectional Pickup: 25' pickup pattern with reduced (-6db) sensitivity on all sides to focus on the desired sound source.
• Low Noise Pre-amplifiers: MOSFET technology ensures high-quality audio with minimal noise interference.
• Frequency Response: 500Hz-13kHz range captures a wide spectrum of sounds for clear audio reproduction.
• Selectable Filters: Jumper selectable hi-cut/lo-cut filters limit frequency response to up to 900Hz to 6kHz significantly reducing unwanted background noises.
• Adjustable Gain: Customizable gain settings allow for precise volume control in different environments.
• Peak Limiter: Fast .5 second response time protects against audio clipping during loud sound intervals.
• Output Impedance: 100 Ohm unbalanced output ensures compatibility with various audio equipment.
• Easy Termination: 3 position Euro-style connector makes cable connections quick and efficient.
• Built-in Voltage Regulator: On-board voltage regulator and RFI filtering enhance performance and stability.
• Durable Enclosure: Ivory ABS enclosure is designed for mounting on any flat surface, providing both aesthetics and functionality.

ETS SM1-SDU Detailed Specifications