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MMS-M66 · Dual-probe wall microphone
Wall microphone with needle and contact probes
MMS-M66 combines two pickup options in a portable wall microphone kit. A slim metal needle probe fits narrow openings, while a ceramic contact capsule picks up vibrations from solid surfaces. The rechargeable amplifier provides adjustable gain and a stereo output for headphones or an external recorder.
- Interchangeable needle and ceramic contact probes.
- Adjustable gain with a stated maximum amplification of ×2000.
- 3.5 mm stereo audio output rated at 250 mW.
- Internal rechargeable 3.7 V lithium battery.
- Up to 100 hours under ideal conditions. Actual runtime varies with use.
Product code: MMS-M66
Price on request
Describe the surfaces and audio equipment you plan to use.
Technical consultation, training and support.
+39 080 302 6530
Two probe options for different contact points
Slim needle probe
The metal probe measures slightly over 1 mm in diameter for placement in narrow gaps and small openings.
Ceramic contact capsule
Picks up surface vibrations from walls and materials such as glass, metal and plastic.
Portable rechargeable unit
The metal amplifier housing measures 74 × 74 × 25 mm. A charger, stereo earphones and carrying case are included.
Full description
Needle pickup and surface contact monitoring
MMS-M66 provides two interchangeable sensors for monitoring sound and conversation through walls and openings. The metal needle probe has a diameter slightly over 1 mm, allowing placement in narrow gaps and small holes. The ceramic contact capsule rests against a surface and converts the vibrations it detects into an audio signal.
The contact probe can be used on walls, glass, metal and plastic. Pickup quality depends on the material, thickness and contact between the capsule and the surface.
Gain control, headphone output and battery power
The amplifier has one probe input, a gain slider and a 3.5 mm stereo output for headphones or an external audio recorder. The DIGICELL portable recorder is a recommended recording option.
An internal rechargeable 3.7 V lithium battery provides up to 100 hours of monitoring under ideal conditions. Actual runtime varies with use. The kit includes both probes, stereo in-ear earphones, a charger, a carrying case and an instruction manual.
Technical specifications
| Power supply | Internal rechargeable 3.7 V lithium battery |
|---|---|
| Battery runtime | Up to 100 hours under ideal conditions. Actual runtime varies with use. |
| Microphone sensors | 1 ceramic contact capsule and 1 metal needle probe |
| Needle probe diameter | Slightly over 1 mm |
| Probe input | One input for the selected probe |
| Gain adjustment | Amplification slider |
| Stated maximum amplification | ×2000 |
| Stated input sensitivity | 70 dB; measurement reference not specified |
|---|---|
| Audio output | 3.5 mm stereo jack, 250 mW |
| Audio connections | Headphones or an external recorder |
| Amplifier housing | Metal |
| Dimensions | 74 × 74 × 25 mm |
| Stated total weight | 300 g |
| Included equipment | MMS-M66 amplifier, needle probe, contact capsule, carrying case, charger, instruction manual and stereo in-ear earphones |
Applications
Adjacent-room audio monitoring
For authorized monitoring through walls, ceilings and floors, the contact capsule picks up structure-borne sound without direct access to the room of interest.
Monitoring through narrow openings
The needle probe provides a pickup option where a contact capsule cannot be positioned. Its slim profile fits narrow gaps, with gain adjusted at the portable amplifier.
Sound-based search support
The probes can support searches for voices or other activity in rooms and concealed spaces. Useful indications depend on the sounds present and the construction being examined.
Technical support
Application review
Discuss the surfaces, contact points and monitoring requirements before selecting a system.
Setup and training
Guidance on probe selection, placement and gain adjustment.
After-sales assistance
Technical support for operation, headphone and recorder connections, and troubleshooting.
Explore the range
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Compare alternatives selected for their function, supported bands, and form factor.
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Alternative with a screw-mounted probe and five-band equalizer.
UHF-STEUHF Contact Audio Transmitter
Contact pickup with UHF audio transmission.
Talk to our team
Specify your contact monitoring setup
Describe the surfaces and your monitoring or recording requirements. Our team can review the application and provide pricing for MMS-M66.
Or call us: +39 080 302 6530