Audio Modules
- $54.65SKU: VPC-1
ETS VPC-1 Vandal Proof Call Switch
- Vandal proof call switch
- High quality normally open, vandal proof switch mounted on a single gang stainless steel plate
- Can be used with ETS sound surveillance equipment, our AN1 and AN4 message recorder / players, and other applications
$54.65Low Price Guarantee - $59.16SKU: ULC-4
ETS ULC-4 Universal Level Converter
- Convert higher DC voltage levels to lower DC voltages
- Convert lower voltage levels to higher voltages
- Convert dry contact or open collector inputs to voltage outputs
- 5 to 24vdc power input
- 4.7K Ohm input impedance
$59.16Low Price Guarantee - $62.73SKU: NQ-GAXMR1
Bogen NQ-GAXMR1 Nyquist Ip Paging System Distributed Audio Transformer Module, 40W
- 40-watt maximum load capacity
- 1 two-pin pluggable Phoenix style input connector
- 1 three-pin pluggable Phoenix style output connector
- 25V and 70V audio outputs (only one output can be used at a time)
- Integrated mounting flanges (4 thread forming M4 x 6mm screws included)
$62.73Low Price Guarantee - $66.97SKU: VNF-1
ETS VNF-1 Single Channel Voice Band Notch Filter, Interface
- VNF-1 Filter / interface
- 12 VDC AC adapter
- 1 each 3′ RCA or 3.5mm patch cables
$66.97Low Price Guarantee - $72.53SKU: MIC2S
Bogen MIC2S Microphone Input Module
- Gain/Trim control
- High Cut/Low Cut controls
- Voice Enhancement control
- Noise gate w/Threshold control
- Limiter w/Threshold control
$72.53Low Price Guarantee - $74.18SKU: MH-AAM
Bosch Auxiliary Audio Module for MH-300/400-Series Headsets, MH-AAM
- Auxiliary audio module for MH-series headsets such as the MH-300, MH-300L, MH-302, MH-302L, MH-402, and MH-402L
- It has a 3.5mm connector, allowing you to listen to any device with a standard headphone jack
$74.18Low Price Guarantee - $74.84SKU: SMEA-1-HP
ETS SMEA-1-HP High Power Ethernet powered I/P camera microphone interface box.
- RCA or 3.5mm audio output connector
- Microphone or line level output
- Transformer isolated audio output
- Adjustable audio output level
- Euro-style connector makes cable termination of microphone fast and clean
$74.84Low Price Guarantee - $75.23SKU: BAL2S
Bogen BAL2S Balanced Input Module
- Stereo, high-impedance, balanced inputs
- Professional-quality, low noise performance
- Selectable gain of 0 or 18 dB
- Mutable by higher priority modules
- Variable ducking level when muted
$75.23Low Price Guarantee - $76.00SKU: TR-1A
Kramer TR-1A Balanced Mono Audio Isolation Transformer
- S/N Ratio-83dB @+4dBu, 1kHz.
- External Input & Output Ground Terminals
- Grounding Options - DIP-switch selectable
- Passive - No power required
- Grounding Options via Dip-switches
$76.00Low Price Guarantee
Audio Modules Frequently Asked Questions
What are audio modules in surveillance systems?
Audio modules are devices that capture and transmit sound within surveillance systems. They enhance security by allowing monitoring of audio in addition to video, providing a fuller picture of events. These modules can be integrated with cameras or standalone devices, enabling two-way communication or audio recording for evidence collection.
How do I choose the right audio module for my home?
Choosing the right audio module involves considering factors such as compatibility with existing surveillance systems, audio quality, and features like noise cancellation or two-way communication. Evaluate the specific areas you want to monitor and the type of audio functionality you need, as well as any environmental factors that may affect performance.
Can audio modules work with existing surveillance cameras?
Yes, many audio modules are designed to integrate seamlessly with existing surveillance cameras. Compatibility is key, so check the specifications of both the camera and the audio module. Some systems may require additional configuration or software updates to ensure proper functionality between the devices.
Are audio modules affected by weather conditions?
Audio modules can be affected by weather conditions, especially if they are not specifically designed for outdoor use. It’s important to select weatherproof or waterproof models for outdoor installations to ensure durability and consistent performance. Indoor modules may not have the same weather resistance, so placement and environmental factors should be considered.
What is the range of audio modules in surveillance systems?
The range of audio modules can vary significantly based on the model and environment. Many audio modules have a range of 20 to 50 feet, but this can be affected by obstacles such as walls or other structures. For larger areas, consider models with extended range capabilities or additional microphones to ensure comprehensive audio coverage.









