🌡️ SONOFF THS01 — Temperature & Humidity Sensor (RJ9, for TH Series)
Accurate temperature and humidity monitoring for your SONOFF TH smart switch. The THS01 plugs into the RJ9 port on any TH Origin or TH Elite controller and provides live readings in the eWeLink app. ±0.3°C temperature accuracy and ±3% relative humidity. Indoor use. 1.5m cable. Extend up to 60m with the optional RL560 extension cable. MPN: THS01.
Choose your TH sensor (RJ9 connector):
⚡ Key Features
- Temperature & Humidity in One Sensor — measures both values simultaneously; no need for two separate sensors
- High Accuracy — ±0.3°C temperature accuracy, ±3% RH humidity accuracy; reliable readings for automation
- RJ9 Plug-and-Play — plug into any SONOFF TH controller's RJ9 port; recognised instantly, no configuration needed
- 1.5m Cable Length — flexible placement around the room; mount the sensor where you need it most
- Extendable to 60m — use the optional RL560 RJ9 extension cable to place the sensor far from the controller
- Compact Sensor Head — small enough to mount discreetly on a wall, shelf, or inside a cabinet
- Indoor Use — designed for indoor environments; for outdoor or wet applications, use the DS18B20 waterproof probe instead
🏠 Use Cases
Smart Thermostat
Pair with a TH controller to create a DIY thermostat. Set your target temp and the relay controls your heater automatically. Cheaper than a commercial thermostat.
Humidity Control
Monitor bathroom, laundry, or storage room humidity. Automate extractor fans or dehumidifiers when humidity exceeds your threshold.
Greenhouse Monitoring
Track temperature and humidity in your greenhouse. Automate shade cloth motors, misters, or ventilation fans.
General Room Monitoring
View living room, bedroom, or nursery temperature and humidity history over 6 months in the eWeLink app.
🔗 Compatible TH Controllers (Required)
The THS01 requires a SONOFF TH controller. The sensor plugs into the RJ9 port on the TH unit.
SONOFF TH Elite 20
20A smart switch with LCD display, 6-month history, and RJ9 sensor port. The premium TH controller.
View Product →SONOFF THR320 Origin
20A smart switch with RJ9 sensor port. Same power as the Elite, without the LCD. Budget 20A option.
View Product →SONOFF THR316 Origin
16A smart switch with RJ9 sensor port. For standard 16A circuits. Most affordable TH controller.
View Product →📋 Technical Specifications
| Product | SONOFF THS01 Temperature & Humidity Sensor |
| MPN / Model | THS01 |
| Measurements | Temperature + Relative Humidity |
| Temp Range | -40°C to +80°C |
| Temp Accuracy | ±0.3°C |
| Humidity Range | 0–100% RH |
| Humidity Accuracy | ±3% RH |
| Connector | RJ9 (4P4C) |
| Cable Length | 1.5 metres |
| Extendable | Up to 60m with RL560 extension cable |
| Environment | Indoor use only |
| Compatible With | THR320 · THR320D (Elite) · THR316 |
| Warranty | 1 Year Manufacturer Warranty |
❓ Frequently Asked Questions
Can I use this sensor without a TH controller?
Is it waterproof?
Can I extend the cable?
What's the difference between THS01, DS18B20, and MS01?
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Temperature & Humidity. One Sensor.
RJ9 plug-and-play for any SONOFF TH controller.