Product Description
What it is
A high-gain electret microphone module with a built-in amplifier, giving CCTV DVRs/NVRs an audio channel via standard RCA output.
Interface and power
- Output: analogue audio via standard RCA connector.
- Power: 12V DC via 2.1mm DC jack — the same connector standard used by most CCTV camera PSUs, so it can share existing power infrastructure on site.
- Recorder requirement: the DVR or NVR must have an RCA audio input channel; without one there is nothing to connect the module to.
Build and placement
The module is compact enough to fit inside a junction box, camera housing, or equipment cabinet rather than sitting as a standalone visible unit. It's specified for indoor and sheltered outdoor installations — not full outdoor exposure — so mount it under eaves, in a canopy, or inside an enclosure rather than in direct weather.
On the job
Typical deployment is alongside a camera at entrances, retail counters, offices, or warehouses, where audio corroborates the video record. The built-in amplifier increases sensitivity over a passive mic, extending pickup range across a room or counter area. For best results, keep the unit away from strong airflow or vibration sources, which the amplifier will also pick up and can degrade recording quality.
Compatibility
Works with most analogue CCTV DVRs and hybrid recorders that provide an RCA audio input channel — check the recorder's rear panel or spec sheet for this before speccing it into a job.
Specifications
- Voltage
- 12V
- Colour
- Yellow
- Connector Type
- RCA
Technical Specifications
Frequently Asked Questions
Does this microphone need its own power supply?
It runs on 12V DC via a 2.1mm DC jack, the same connector standard used by most CCTV camera power supplies, so it can often share an existing supply.
Will it work with any DVR or NVR?
Only with recorders that have a dedicated RCA audio input channel — check the rear panel or manual, as many budget analogue recorders don't include one.
Can it be mounted fully outdoors?
It's specified for indoor and sheltered outdoor installations only, so it should be sited under cover such as eaves or a canopy rather than in direct weather exposure.
Where is it typically installed?
Its compact size lets it be integrated inside a junction box, camera housing, or equipment cabinet, commonly alongside a camera at entrances, counters, offices, or warehouses.
