MGT SST-33 — Stereo Digital Recordable Stethoscope
MGT SST-33 is a professional stereo digital recordable stethoscope engineered for demanding listen-through-walls operations. Designed for field deployment, it combines high-sensitivity sensing with clean, intelligible audio and practical controls for fast setup and reliable interpretation.
The system uses two highly sensitive accelerometers to detect subtle structural vibrations. A high-reliability DSP processing chain supports equalisation and noise management to help operators isolate the signal of interest. The unit is equipped for monitoring via headphones and supports integration with recording workflows via USB file handling.
- Stereo operation with two balanced channels.
- High-sensitivity accelerometers for subtle vibration capture.
- DSP processing to improve clarity and control the audio profile.
- 5-band equaliser with ±12 dB per band.
- Stereo headphone output with adjustable gain (0–40 dB).
- USB file handling (FAT16/FAT32) for standard workflows.
- Perspex dust cover supplied for operational protection.
Highlights
- Designed for professional deployments where dependable results and repeatability matter.
- Stereo monitoring supports analysis and confidence during operation.
- Field-friendly controls and output options for practical workflows.
FAQ Quick answers
What makes the SST-33 suitable for listen-through-walls work?
The SST-33 uses two high-sensitivity accelerometers and DSP processing to capture subtle structural vibrations and help produce clean, intelligible audio.
Can the SST-33 be recorded or interfaced to external workflows?
The unit supports USB file handling (FAT16/FAT32) and outputs suitable for monitoring and recording workflows, depending on the operational configuration.
How many channels does the SST-33 support?
The SST-33 supports two balanced channels for stereo operation and improved analysis and localisation.
Technical overview
Specifications
| Input | 2 balanced channels |
|---|---|
| Bandwidth | 50 Hz – 8 kHz |
| Sample frequency | 16 kHz |
| Microphone gain | 59.5 dB |
| Microphone AGC | Yes |
| Line out gain | 0 – 40 dB |
| Headphone gain | 0 – 40 dB |
| Equalizer bands | 5 |
| Gain each band | ± 12 dB |
| Audio output | Stereo headphones |
| Stereo separation | 70 dB |
| USB file system | FAT16 or FAT32 |
| Compression | None |
Product gallery
Procurement, compliance & support
Supply is restricted to qualified government, defence and law-enforcement customers or accredited partners. End-use and export controls apply; local regulations must be observed. Confidential datasheets, integration guidance and training are available on request.