Nous B2T – Wi‑Fi Smart Switch / Relay with Power Measurement

Compact Wi‑Fi smart relay module with built-in energy monitoring and open firmware

The Nous B2T is a single-channel smart switch module featuring a relay and real-time power measurement. It comes pre-flashed with **Tasmota firmware** for local control without relying on the cloud and supports **Matter** and **MQTT** protocols for broad smart home integration. Its compact design allows installation inside standard flush-mount boxes behind existing switches.

Key Features

• Wi‑Fi Connectivity: IEEE 802.11 b/g/n (2.4 GHz), no hub required
• Tasmota Firmware: Local control and privacy-first operation
• Power Measurement: Monitors real-time and historical energy consumption
• Matter & MQTT Support: Works with Home Assistant, SmartThings, and voice assistants
• Compact Design: Fits in standard in-wall boxes under existing switches
• Voice Assistant Compatible: Works with Alexa, Google Assistant, and Siri (via Matter)

Technical Specifications

• Manufacturer: Nous
• EAN: 5905072800501
• Model: NOUS-B2T
• Wireless Protocol: Wi‑Fi 2.4 GHz
• Supported Protocols: MQTT, Matter
• Input Voltage: 100–240 V AC / 24–30 V DC
• Maximum Load: 16 A AC, 10 A DC
• Dimensions: Approx. 42 × 37 × 16 mm
• Weight: Approx. 30 g
• Material: Flame-retardant PC V0
• Operating Temperature: 0 °C – 40 °C
• Protection Rating: IP20

Applications

• Remote control and automation of lights or appliances via Wi‑Fi
• Real-time energy monitoring for usage optimization
• Integration with smart home platforms using MQTT and Matter
• Voice control with Alexa, Google Assistant, and Apple HomeKit (via Matter)
• In-wall installation behind existing switches or inside electrical boxes

Package Contents

1 × Nous B2T Wi‑Fi Smart Switch Module
User Manual

Quantity Per Unit

1 × Nous B2T per package

Keywords

Nous B2T, NOUS-B2T, Wi‑Fi smart switch, Tasmota switch, power meter, Matter compatible, MQTT integration, smart home relay.