The DS-101DWN is a Tuya-compatible smart WiFi water heater switch designed for controlling high-power appliances like electric water heaters, pumps, or boilers remotely via a smartphone app. It operates on AC 100-240V at 50/60Hz with a maximum load capacity of 40A (up to 8000W), making it suitable for heavy-duty applications. The device supports 2.4GHz WiFi and Bluetooth Low Energy (BLE) for easy setup and connectivity, allowing integration with voice assistants like Amazon Alexa and Google Assistant for hands-free operation. Key features include real-time status monitoring, timer and scheduling functions (such as countdown, circulation, and inching modes), device sharing with family members, and a compact wall-mounted design measuring 86x86x35mm (EU standard size).