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: Not supported (WiFi only)

Network

• WiFi: IEEE 802.11 b/g/n (2.4 GHz), WPA/WPA2

Water Sensor

• Cable length: 3 meters (maximum recommended)
• Connection type: 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.

💡 Need more distance? Consider the WaterP1MeterKit — install it near the water meter and use Ethernet (up to 100m) for network connectivity.

Software

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