Water heating thermostat Avatto WT50 Wi‑Fi Tuya 3A — smart controller for electric heaters, 3 A

Avatto WT50 Wi‑Fi Tuya water heating thermostat designed to control electric water heaters and small circulation pumps. The WT50 supports 2.4 GHz Wi‑Fi connection and integration with Tuya/Smart Life apps, enabling remote temperature control, scheduling and voice control while also allowing local operation via device buttons. Rated for a maximum switching current of 3 A, it uses a 10K B3950 NTC sensor for temperature accuracy up to 1°C and features an LCD that shows mode, set temperature, connection status and time.

Advantages

The thermostat offers precise temperature measurement with an NTC 10K B3950 sensor and ±1°C accuracy, flexible scheduling with multiple weekly modes (5+1+1, 5+2, 7 days) and six time slots per day, and three control methods: Tuya/Smart Life app, voice assistants (Amazon Alexa, Google Home, Yandex Alice) and onboard buttons. The LCD display provides clear status information and adjustable brightness, and built‑in child lock and power‑loss memory protect settings and prevent accidental changes.

Suitable for

• Control of electric water heaters in homes and apartments
• Small hot water circulation pumps in residential or commercial buildings
• Remote temperature scheduling and smart‑home integration via Tuya/Smart Life

Key specifications

• Manufacturer: Avatto
• Model: WT50-WH-3A
• Rated load: 3 A
• Voltage: 95–230 V AC, 50/60 Hz
• Sensor: NTC 10K B3950
• Temperature accuracy: 1°C
• Temperature range: 5°C–60°C
• Display: LCD with adjustable brightness
• Wireless: 2.4 GHz Wi‑Fi
• App compatibility: Tuya, Smart Life
• Voice assistants: Amazon Alexa, Google Home, Yandex Alice, etc.
• Dimensions: 86 × 86 × 40 mm
• Material: PC V0
• Color: grey

How to use

Install the Avatto WT50 on a suitable location near the heater or pump following the included instructions and secure with the supplied screws. Power the device from an appropriate AC supply (95–230 V). Connect the thermostat to your 2.4 GHz Wi‑Fi network via the Tuya or Smart Life app on an Android or iOS device, then configure desired temperature setpoints and weekly schedule (5+1+1, 5+2 or 7 days with six periods per day). You can operate the device manually using the onboard buttons or control it remotely through the app and via supported voice assistants.

Usage recommendations

For reliable operation, use the thermostat with appliances within the 3 A rating and keep the Wi‑Fi network stable (2.4 GHz). Enable child lock if the device is accessible to children and set appropriate safety limits in the app. After power interruptions the WT50 restores last settings; verify operation after installation and check sensor placement to ensure accurate temperature readings.