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Axis T8351 compact, all-round microphone with 3.5mm adapter, compatible with Axis IP cameras

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This product is discontinued, an alternative model is the Axis T8351 Mk II microphone

Overview of the Axis T8351 microphone

Part of the Axis T83 range of professional microphones, the Axis T8351 microphone offers high performance in all scenarios, providing audio data that can be used for non-invasive sound detection or to complement video surveillance.

The T8351 has a 3.5mm connector and is compatible with all network cameras that have a 3.5mm jack for microphone input. The microphone is omni-directional and able to pick up sound from its surroundings without the need to be aimed directly at the source. It provides enhanced audio quality in comparison to microphones that are already built into camera housings.

The Axis T8351 provides a valuable addition to a CCTV system as users can assess the urgency level in an emergency situation such as for example shouting, unusual loud noises, breakages or abusive language, and it also extends the camera to be used as an intercom system. The T8351 microphone can be easily installed on ceilings or walls and comes with a wide range of fitting accessories. The unit's compact size is ideal for unobtrusive audio surveillance and an optional 5 metre cable (sold separately) enables installation near to the sound source. This Axis microphone can be used indoors as well as in covered outdoor environments such as porches, under canopies and in train stations.

Key technical features

Supported cameras: all network cameras supporting a 3.5 mm jack for microphone input
Frequency range: 20 Hz to 20 kHz
Sensitivity: -40 dB (relative: 1 V/Pa)
Max SPL, peak before clipping: 120 dB
SNR: 64 dB A-weighted (relative: 1 kHz @ 1 Pa, 94 dB SPL)
Directionality: omni-directional
Audio: 3.5 mm phono plug
Power: 3–5 V DC; power provided by the Axis IP camera that the microphone is connected to (no separate PSU required)
Casing: colour: light gray NCS S 1002-B
Compliance: RoHS, REACH, IEC/EN 60950-1, EN 55103-1, EN 55103-2
Approvals: IP66-rated
Environment: indoor, semi-outdoor
Operating conditions: -20°C to 60°C, humidity up to 75% RH (non-condensing)
Dimensions: microphone (LxHxW): 28 x 20 x 20 mm, cable (LxØ): 5 m x 3 mm, 3.5 mm plug (Ø): 6 mm
Weight: 70g
Warranty: 3 years



  • White cover
  • Mount bracket 0-4mm
  • Mount bracket
  • Double-sided tape 20x10mm
  • Cable holder
  • Cable gasket M20 3mm
  • Cable gasket M16 3mm
  • Installation guide


  • 5 metre Axis audio extension cable
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