Description
The SONOFF THR320D (TH Elite 20A) is a high-power smart Wi-Fi switch designed for precise real-time temperature and humidity monitoring. With a 20A load capacity, it is suitable for both home and industrial applications, enabling control of high-power appliances such as heaters, HVAC systems, or pumps. The device integrates seamlessly with the eWeLink app, allowing remote monitoring, scheduling, and automation based on environmental data. Voice assistant compatibility adds convenient hands-free control. Built with durable materials and reliable sensors, the THR320D ensures accurate measurements and safe operation, while its automation capabilities help optimize energy use, maintain optimal conditions, and enhance comfort, safety, and efficiency in smart homes and professional setups alike.
Key Features
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Powerful 20A Smart Control
Supports heavy-duty appliances up to 20A / 4400W, ideal for HVAC systems, greenhouses, water heaters, and more.
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Real-Time Temperature & Humidity Monitoring
Connect compatible sensors (THS01, WTS01, or MS01) to monitor environmental conditions accurately.
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Built-in LCD Display
Check live temperature, humidity, and switch status instantly without needing your phone.
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Smart Automation & Scheduling
Automatically turn devices on/off based on preset temperature or humidity ranges for efficient energy control.
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Overload Protection
Automatically powers off connected devices when voltage, current, or power exceeds safe limits.
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Remote App Control
Manage, monitor, and automate appliances anytime through the eWeLink app (iOS & Android).
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Voice Control Support
Works with Amazon Alexa and Google Assistant for convenient hands-free operation.
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LAN & Cloud Connectivity
Control devices even without internet using LAN mode for more reliability.
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Durable and Safe Design
Built with flame-retardant PC V0 material for maximum safety and durability.
Technical Specifications
| Specification |
Details |
| Model |
SONOFF THR320D (TH Elite 20A) |
| Rated Voltage |
100–240V AC, 50/60Hz |
| Maximum Load |
20A / 4400W |
| Connectivity |
Wi-Fi IEEE 802.11 b/g/n (2.4GHz) |
| Display |
LCD Screen |
| Sensor Compatibility |
THS01, WTS01, MS01 (optional) |
| Power Monitoring |
Voltage, Current, Power (Real-time) |
| Protection Features |
Overload / Over-voltage / Over-current |
| App Support |
eWeLink (iOS & Android) |
| Voice Assistants |
Amazon Alexa / Google Assistant |
| Material |
Flame-retardant PC V0 |
| Mounting Type |
DIN-rail or surface mount |
| Dimensions (Approx.) |
98 × 54 × 31 mm |
Why Choose SONOFF THR320D?
Smart control + precise environmental monitoring
Handles high-power loads up to 20A
Built-in LCD for quick readings
Automation based on temperature & humidity
Perfect for homes, greenhouses, and industrial use
