🌡️ SONOFF THR316 Origin — 16A WiFi Smart Switch with Temperature & Humidity Control
Smart temperature, humidity, and moisture control for standard 16A circuits. The SONOFF THR316 Origin is a 16A WiFi smart switch with an RJ9 sensor port — plug in a temperature, humidity, or soil moisture sensor (sold separately) and automate heating, cooling, fans, and irrigation based on real sensor readings. 6-month data history via eWeLink. No LCD — app-only readings. The most affordable TH controller. MPN: THR316.
Choose your TH controller:
⚡ Key Features
- 16A / 3,520W Maximum Load — matches standard SA 16A breakers; handles most heaters, fans, extractors, and household appliances
- RJ9 Sensor Port — plug in THS01 (temp+humidity), DS18B20 (waterproof temp), or MS01 (soil moisture)
- Auto-Mode (Thermostat/Humidistat) — set a target temperature or humidity; the relay maintains your setpoint automatically
- 6-Month Data History — view temperature, humidity, or moisture data trends in the eWeLink app
- Most Affordable TH Controller — same ESP32 chip, same sensor compatibility, same automations — just 16A instead of 20A and no LCD
- DIN Rail Mountable — professional DB board installation
- Schedules & Smart Scenes — combine time schedules with sensor triggers
- RL560 Extension Cable — extend THS01/DS18B20 up to 60m, MS01 up to 10m
- Home Assistant — eWeLink add-on, SonoffLAN, Tasmota, ESPHome
- Voice Control — Alexa, Google Assistant
🏠 Perfect For
Room Heating
Plug in THS01 sensor. Set your target temperature. The THR316 switches your panel heater or oil fin radiator on/off automatically — smart thermostat for any heater under 16A.
Bathroom Extractor
Monitor humidity with THS01. “If humidity > 65% → extractor on.” Prevents mould after showers without wasting electricity by running the fan all day.
Garden Irrigation
MS01 soil moisture sensor + THR316 = automated irrigation. The pump runs only when the soil is dry. Saves water, saves electricity, healthier plants.
Chicken Coops & Reptiles
Maintain precise temperature for animals. DS18B20 waterproof probe measures ambient temperature; the THR316 controls the heat lamp or mat.
🔗 Compatible Sensors (Sold Separately)
SONOFF THS01
Temperature & humidity sensor. ±0.3°C / ±3% RH accuracy. Indoor use. RJ9 plug-and-play.
View Sensor →
DS18B20 Waterproof Probe
Stainless steel waterproof temperature probe. -55°C to +125°C. For geysers, pools, pipes, outdoor.
View Sensor →
SONOFF MS01 Soil Moisture
Soil moisture sensor for automated irrigation. Weatherproof. Trigger watering based on soil dryness.
View Sensor →
📋 Technical Specifications
| Product | SONOFF THR316 Origin Smart Switch |
| MPN / Model | THR316 |
| Max Load | 16A / 3,520W @ 220V AC |
| Input Voltage | AC 100–240V, 50/60Hz |
| Display | None (app-only readings) |
| Sensor Port | RJ9 (sensor sold separately) |
| Compatible Sensors | THS01 · DS18B20 · MS01 |
| Data History | 6 months via eWeLink app |
| Chip | ESP32 |
| WiFi | 2.4 GHz 802.11 b/g/n |
| Mounting | DIN rail (35 mm) |
| Home Assistant | eWeLink add-on · SonoffLAN · Tasmota · ESPHome |
| Voice Control | Amazon Alexa · Google Assistant |
| Warranty | 1 Year Manufacturer Warranty |
❓ Frequently Asked Questions
Is a sensor included?
What’s the difference between THR316, THR320, and TH Elite?
Can I use it as a geyser controller?
🤝 Need Help? We’re Here for You!
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8 Wildebraam Street
Weltevreden Park, Roodepoort
Gauteng, 1709
Smart Sensor Control. Budget Price.
16A WiFi switch with RJ9 sensor port. The most affordable TH controller.
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