The ETS SM1-TRWCF Compact Surface Mount Weatherproof, Tamper Resistant Omni-Directional Microphone is engineered for outstanding performance in challenging environments. Its weatherproof and tamper-resistant design makes it perfect for both vehicular exterior and interior applications. With a small form factor and efficient pre-amplifier circuit board, this microphone connects seamlessly to various audio systems, ensuring high-quality sound capture while maintaining durability and reliability.
ETS SM1-TRWCF Microphone Features
- Robust Housing: Powder coated, aluminum, tamper resistant housing ensures long-lasting durability and protection against tampering.
- Omni-Directional Pickup: 25′ pickup pattern allows for versatile sound capture from all directions, making it suitable for various applications.
- Low Noise Pre-Amplifier: Features a low noise MOSFET pre-amplifier that enhances audio clarity and reduces background noise.
- Adjustable Gain: Customizable gain settings provide flexibility in audio levels for different environments and applications.
- Line Level Output: Line level (0dbm) output facilitates easy integration with mixers and amplifiers.
- Wide Frequency Response: 500Hz-13Khz frequency response ensures high fidelity audio capture across a broad range of sounds.
- Unbalanced Output: 100 Ohm unbalanced output simplifies connectivity to various devices.
- Power Requirements: Operates on 12 to 24VDC @ 10ma, making it energy efficient and easy to power in various setups.
- S/N Ratio: A signal-to-noise ratio of 60DB provides clear sound transmission without interference.
- Sensitivity: Sensitivity of –44DB enhances the microphone’s ability to capture quiet sounds effectively.
- Temperature Resilience: Operating temperature range of –25 to 85C ensures functionality in extreme conditions.
- On-Board Regulator: Integrated voltage regulator and RFI filtering improve overall performance and reduce electronic interference.
- Potted Electronics: Potted electronics offer additional protection against moisture and physical damage.
- IP55 Rating: Rated IP55 for dust and water resistance, making it suitable for outdoor use.
ETS SM1-TRWCF Detailed Specifications
| Housing | Powder coated aluminum, tamper resistant |
| Pickup Pattern | Omni-directional, 25′ range |
| Pre-Amplifier | Low noise MOSFET |
| Gain | Adjustable |
| Output Level | Line level (0dbm) |
| Frequency Response | 500Hz-13Khz |
| Output Impedance | 100 Ohm unbalanced |
| Power Supply | 12 to 24VDC @ 10ma |
| Signal-to-Noise Ratio | 60DB |
| Sensitivity | –44DB |
| Operating Temperature | –25 to 85C |
| Regulation & Filtering | On-board voltage regulator and RFI filtering |
| Protection | Potted electronics |
| Ingress Protection | IP55 rating |



















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