Smartmi Air Purifier P1-47DAA8
88:57:21:47:da:a9
- Security
- UNKNOWN
- Auth detail
- —
- Type
- infrastructure
- Channel
- 1
- Frequency
- 2412 MHz
- Vendor
- Espressif Inc.
- Best signal
- -77 dBm
- Sightings
- 3
- First seen
- 2026-09-03 12:55:25
- Last seen
- 2026-09-07 16:46:49
Location
- Postal district
- 1620 København V
- Kommune
- København
- Region
- Region Hovedstaden
- Coordinates
- 55.6727157, 12.5518951
- Altitude
- 46.71 m
- Sighting spread
- 42 m furthest, 25 m average
Seen several times from nearby, so this position is a good one.
The amber lines join the most recent sighting positions to one another. Where many of them cross is the part of the map most consistent with every sighting at once, which is usually nearer the hardware than any single drive-by fix — but it is a reading aid, not a measurement. Uncheck “Cross-reference lines” on the map to hide them.
Open on the full map Other networks in 1620
Map data © Mapbox, © OpenStreetMap contributors.
Recent observations
| Observed | Latitude | Longitude | Altitude | Signal |
|---|---|---|---|---|
| 2026-09-07 16:46:49 | 55.6727157 | 12.5518951 | 46.71 m | -77 dBm |
| 2026-09-03 12:55:26 | 55.6727853 | 12.5525502 | 45.60 m | -82 dBm |
| 2026-09-03 12:55:25 | 55.6728038 | 12.5523833 | 46.00 m | -82 dBm |