XIAO 2-Channel Wi-Fi AC Energy Meter Bundle Kit (with 2 × 100A CT Sensors)
Overview
This bundle includes the XIAO 2-Channel Wi-Fi AC Energy Meter and two 100A non-invasive current transformers, providing everything needed for accurate dual-circuit energy monitoring and Home Assistant integration.
Pre-flashed with ESPHome, the XIAO Energy Meter connects directly to Home Assistant over Wi-Fi, allowing real-time power measurement, automation, and analytics for home or solar monitoring setups.
Key Features
• Dual-channel measurement for monitoring two independent AC circuits
• Pre-flashed with ESPHome for instant Home Assistant discovery
• Includes 2 × 100A non-invasive CT sensors (1 % accuracy)
• BL0939 metering IC with factory calibration
• Bi-directional power measurement for consumption and generation tracking
• 2.4 GHz Wi-Fi with external antenna for strong, stable connectivity
• Compact, open-source 3D-printed enclosure
Specifications
| Item | Details |
|---|---|
| Energy Meter Model | XIAO 2-Channel AC Wi-Fi Energy Meter |
| Controller | Seeed Studio XIAO ESP32-C6 |
| Input Voltage | 100–240 V AC @ 50/60 Hz |
| Measurement Channels | 2 |
| Metering IC | BL0939 (±1 % accuracy) |
| CT Sensors | 2 × Non-invasive 100A : 50 mA |
| Wireless | 2.4 GHz Wi-Fi |
| Antenna | External 2.81 dBi SMA rod antenna |
| Dimensions | 58 × 70 × 38 mm |
Included in Bundle
| Item | Quantity |
|---|---|
| XIAO 2-Channel Wi-Fi AC Energy Meter | 1 |
| Non-invasive AC Current Transformer (100A Max) | 2 |
Installation Notes
Clamp the CT sensors around the live conductors of the monitored circuits.
Connect the energy meter to AC mains power and add it to Home Assistant via ESPHome.
For optimal signal strength, position the antenna clear of metal surfaces.