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Pow-U
HAN-port reader for M-bus power meters
Used on two categories power meters:
- Power meters in Norway and Sweden with HAN-NVE interface (RJ45 connector; same as for Ethernet).
- Power meters in other countries that delivers M-bus signal to an RJ12 connector. If in doubt, consult your grid company or email us before placing order.
For Kamstrup Omnipower meters, Pow-K is a better and less expensive solution.
Order without 3D printed holder if you prefer to 3D print enclosure yourself.
Technical specifications
| Compatibility | Meters with M-bus signal |
| Connection | Wi-Fi 2.4GHz b/g/n |
| Power | Powered from the meter |
| Input voltage | M-bus up to 36V |
| Operating power | 0,5 W |
| Data encryption | Supported |
| MQTT | Yes, also SSL |
| Home Assistant autodiscovery | Yes |
| Dimensions | 70 x 39 x 24 mm |
| Weight (incl enclosure) | 40 g |
| Operating conditions | IP20 (not waterproof) |
| Temperature range | -20°C to +70°C |
| Humidity | Non-condensing |
Verified to work on Aidon, Kaifa/Nuri, Kamstrup Omnipower with HAN-NVE module (could be necessary to power device via USB), Landis & Gyr (some models), Sagemcom.
Features
- Embedded powerful ESP32 micro controller
- Integrates with smart home systems via MQTT
- Home Assistant auto-discovery
- No cloud server, you control of your data
- Embedded RJ-45 connector
- CE marked, the EU declaration of conformity can be downloaded from here.
Delivered with latest version amsreader-firmware.
Connects to your local wifi, where it displays a web user interface page that can be opened from a device (PC, tablet, phone, ...) connected your internal Wi-Fi network.
If you chose an option without enclosure, you can 3D-print the enclosure yourself from downloadable STL files.
Enclosure designed by Øyvind Kaurstad, you can find more of his 3D-designs here: https://cults3d.com/en/users/mroek/creations
POWU-E-RJ45-15CM
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HAN-port reader for M-bus power meters
Used on two categories power meters:
- Power meters in Norway and Sweden with HAN-NVE interface (RJ45 connector; same as for Ethernet).
- Power meters in other countries that delivers M-bus signal to an RJ12 connector. If in doubt, consult your grid company or email us before placing order.
For Kamstrup Omnipower meters, Pow-K is a better and less expensive solution.
Order without 3D printed holder if you prefer to 3D print enclosure yourself.