Model note · Stethoscope
Thinklabs One Digital Stethoscope
The Thinklabs One is a chestpiece sized electronic stethoscope that amplifies heart, lung and other body sounds and offers five selectable frequency filters. The user listens through headphones on a standard 3.5 mm jack rather than through tubing. It runs on an internal rechargeable lithium ion button cell, has push buttons around its rim and an LED display for volume, filter and battery level.
The model
Maker, model and type.
- Maker
- Thinklabs
- Model
- Thinklabs One Digital Stethoscope
- Device type
- Stethoscope
- Main document
- Open the public document
Key specifications
What the public record says.
| Item | Value | Source |
|---|---|---|
| Filters | 1: 30 to 500 Hz; 2: 60 to 500 Hz; 3: 80 to 500 Hz; 4: 100 to 1000 Hz; 5: 20 to 2000 Hz wideband; defaults favourites 1 and 3 | Source |
| Audio output | Standard 3.5 mm headphone jack; volume shown on a 0 to 10 LED scale | Source |
| Battery | Internal rechargeable Li-ion button cell, not user replaceable; about 240 min active listening; standby over 4 weeks | Source |
| Charging | Supplied 100 to 240 V charger and cable only; charge at 5 to 35 C | Source |
| Auto shut off | Factory default 2 min, settable 1 to 10 min or disabled | Source |
| EMC and warranty | Complies with IEC 60601-1-2; 2 year warranty from invoice date | Source |
| FDA listing | Thinklabs' only 510(k) record in openFDA is K032230 (Rhythm digital electronic stethoscope, product code DQD, 2003, statement) | Source |
Recalls
Recalls.
This note lists no recalls. Check the FDA recall database for the latest record.
Safety
Safety warnings from the record.
- Never expose the device to over 100 C (for example a hot car), because the battery could explode. Source
- Do not charge it while it is touching a patient, and do not use multiple socket outlets. Source
- Use only the supplied charger; others could damage the battery or cause fire. Source
- Keep volume moderate to avoid tinnitus or hearing loss. Source
- Clean between patients with alcohol, but never immerse or sterilise it; not for oxygen rich environments. Source
Sources
Where this note comes from.
Not covered: No 510(k) for the Thinklabs One itself was found; the only Thinklabs record is a 2003 statement for an older model, so the One's US regulatory basis is not confirmed. openFDA has no Thinklabs recall or MAUDE records. Gain figures and size were not in the manual and reseller claims were not used.
BMEssentia knowledge drafted from public information, reviewed by Hasan Khaled Ismail on 2026-10-24. Always follow the manufacturer's instructions for use and service manual.