Technical Specifications

General

• Temperature range: -10°C to +40°C (operational)
• Dimensions: 92 x 47.5 x 26.5 mm
• Current hardware: V3 with ESP32-C6
• Enclosure: IP20, not waterproof. Install in dry location only

Power

• USB-C: 5V ⎓ 1A minimum. The USB-C adapter set with 3-meter cable is optional.
• PoE: Not supported

Network

• WiFi: IEEE 802.11 b/g/n (2.4 GHz), WPA2 or WPA3 (V1 and V2: WPA2)
• Thread (V3): IEEE 802.15.4, with the Thread firmware and a Thread border router

Water Sensor

• Cable length: 3 meters (maximum recommended)
• Connection type: Detachable connector on V3, screw terminal (3 wires) on V1 and V2
• 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