Technical Specifications

General

• Temperature range: -10°C to +40°C (operational)
• Dimensions: 92 x 47.5 x 26.5 mm
• Enclosure: Not waterproof — install in dry location only

Power

• USB-C: 5V ⎓ 1A minimum
• PoE: 802.3af (V2/V3 only, built-in)

Network

• WiFi: IEEE 802.11 b/g/n (2.4 GHz), WPA/WPA2
• Ethernet: 10/100 Mbps (V2/V3 with built-in PoE)

Water Sensor

• Cable length: 3 meters (maximum recommended)
• Connection type:
  • V3: Detachable connector plug
  • V1/V2: Screw terminal (3 wires)
• Compatibility: Analog water meters with rotating metal 1-liter indicator

⚠️ Do not extend the sensor cable beyond 3 meters. Voltage drop causes unreliable readings. Use Ethernet for distance instead.

P1 Energy Meter

• Cable: RJ12 (included)
• Compatibility: DSMR/ESMR 2.2 - 5.0

Software

• Firmware: Open source ESPHome
• Integration: Native Home Assistant support
• Updates: OTA (Over-The-Air) supported