ETS SM1-MD is a high-performance, motion detector style, omni-directional, pre-amplified microphone designed for fixed location security applications. With a 25-foot pickup pattern in all directions, it captures sound effectively while minimizing background noise. The built-in limiter circuit automatically lowers the output level during loud sound intervals, ensuring clear audio capture. Selectable hi-cut and low-cut filters further enhance audio quality by reducing unwanted noise. The ABS enclosure allows for easy surface mounting, and it connects seamlessly to various switchers, mixers, amplifiers, or DVRs.
ETS SM1-MD Microphone Features
- Omni-directional 25’ pickup pattern: Captures sound from all directions, ensuring comprehensive audio monitoring.
- Low noise MOSFET pre-amplifier: Provides high-quality sound amplification while minimizing noise interference.
- 500Hz-13KHz Frequency response: Delivers a wide range of audio frequencies for clear sound reproduction.
- Jumper selectable hi-cut/low-cut filters: Limits frequency response to 900-6KHz, significantly reducing background noise for clearer audio.
- Adjustable gain in both volume ranges: Allows for fine-tuning of audio levels to suit different environments and applications.
- 100 Ohm unbalanced output: Ensures compatibility with a variety of audio equipment.
- Internal peak limiter circuit: Responds in 0.5 seconds to lower output during loud sounds, protecting audio quality.
- 3 position Euro-style connector: Facilitates fast and clean cable termination for quick setup.
- Reverse polarity protected: Prevents damage to the microphone in case of incorrect power connections.
- On-board voltage regulator and RFI filtering: Ensures stable performance and reduces radio frequency interference.
Detailed Specifications of ETS SM1-MD
| Pickup Pattern | Omni-directional, 25’ range |
| Frequency Response | 500Hz – 13KHz |
| Pre-amplifier Type | Low noise MOSFET |
| Output Impedance | 100 Ohm unbalanced |
| Limiter Response Time | 0.5 seconds |
| Connector Type | 3 position Euro-style |
| Power Protection | Reverse polarity protected |
| Filters | Selectable hi-cut/low-cut |
| Enclosure Material | ABS plastic |
| Voltage Regulation | On-board voltage regulator |
| RFI Filtering | Yes |



















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