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, this microphone features a built-in limiter circuit to automatically lower the output level during loud sound intervals. It also includes selectable hi-cut and low-cut filters to significantly reduce background noise, making it an ideal choice for clear audio capture. The flexible plastic plate allows for easy flush mounting or installation on a single gang electrical box, ensuring compatibility with various setups.

ETS SM1 Microphone Features

• Omni-directional 25’ pickup pattern: Captures sound from all directions, ensuring comprehensive audio coverage in security settings.
• Low noise MOSFET pre-amplifier: Enhances audio quality by minimizing noise, delivering clearer sound signals.
• 500Hz-13Khz Frequency response: Provides a wide frequency range, suitable for various audio applications.
• Jumper selectable hi-cut/low-cut filters: Limits frequency response to 900-6khz, effectively reducing background noise for clearer recordings.
• Jumper selectable volume range: Offers “Line level” (0db) or “Microphone level” (-30db) options for versatility in different audio environments.
• Adjustable gain: Allows fine-tuning of volume levels in both selected ranges for optimal performance.
• 100 Ohm unbalanced output: Simplifies connections with various audio equipment.
• Internal peak limiter circuit: Responds within 0.5 seconds to prevent distortion during loud sounds.
• 3 position Euro-style connector: Facilitates fast and clean cable termination, enhancing installation efficiency.
• Reverse polarity protection: Safeguards the microphone from damage due to incorrect wiring.
• Power requirements: Operates on 12 to 24VDC @ 10mA, ensuring compatibility with a wide range of power sources.
• On-board voltage regulator and RFI filtering: Ensures stable performance by regulating voltage and reducing radio frequency interference.
• S/N ratio: More than 60DB for high-quality sound reproduction.
• Sensitivity: -45DB, providing effective sound detection capabilities.
• Industrial temperature range: Operates efficiently between –40 to 105C, making it suitable for various environments.
• Flexible plastic plate: Allows for flush mounting or installation on a single gang electrical box for adaptable use.
• Dimensions: L 4.7” x W 2.9” H 0.9”, compact size for easy integration into different setups.

ETS SM1 Detailed Specifications