SONOFF WTS01 Waterproof Temperature Sensor for TH Series – WTS01 | Waterproof Probe Sensor, Stainless Steel Probe, RJ9 / 2.5mm Jack, TH Elite & TH Origin Compatible.
Overview:
• SONOFF WTS01 is a waterproof temperature probe sensor designed for use with compatible SONOFF TH Series smart temperature and humidity monitoring switches.
• The sensor is used to measure temperature in places where the main controller cannot be installed directly, such as water tanks, pipes, refrigerators, freezers, HVAC ducts, equipment rooms, greenhouses, and humid environments.
• It features a durable stainless steel temperature probe with a wide working temperature range, making it suitable for accurate temperature monitoring in demanding applications.
• WTS01 is not a standalone smart device. It must be connected to a compatible SONOFF TH device such as TH Elite / TH Origin to display readings, trigger automation, and send app alerts. SONOFF lists WTS01 as compatible with TH Elite and TH Origin series sensors/accessories.
• The sensor is available with RJ9 4P4C or 2.5mm audio jack connection depending on the compatible TH device version.
Key Features:
• Waterproof temperature probe sensor for SONOFF TH Series.
• Stainless steel probe for durable temperature detection.
• Wide temperature measurement range suitable for cold and hot environments.
• 1.5-meter cable length for flexible probe placement.
• Compatible with SONOFF TH Elite and SONOFF TH Origin smart monitoring switches.
• Supports temperature-based automation, alerts, and device control when connected to a compatible TH Series controller.
• Suitable for water tanks, refrigerators, freezers, pipes, HVAC, greenhouses, and equipment monitoring.
• Can be extended using compatible SONOFF extension cable; SONOFF notes that THS01 / WTS01 can be extended up to 60m using the RL560 extension cable.
• Simple plug-in installation without separate power supply.
• Ideal for accurate temperature monitoring where humidity or water exposure may affect normal sensors.
Technical Specifications:
• Brand: SONOFF.
• Model Name: WTS01.
• Product Type: Waterproof Temperature Sensor / Probe Sensor.
• Probe Material: Stainless steel temperature probe.
• Temperature Measuring Range: -40°C to 115°C.
• Power Supply: 3.0–5.5V.
• Cable Length: 150cm / 1.5m.
• Connector Type: RJ9 4P4C or 2.5mm audio jack depending on version.
• Compatible Devices: SONOFF TH Elite / TH Origin Series.
• Extension Support: Compatible with SONOFF RL560 extension cable up to 60m for THS01 / WTS01.
• Smart App: eWeLink App through compatible SONOFF TH controller.
• Functions: Temperature measurement, temperature monitoring, automation trigger, app alert through connected TH device.
• Installation Type: Probe insertion / surface temperature monitoring / indoor or protected installation.
• Application: Temperature monitoring for water, pipe, refrigerator, freezer, HVAC, greenhouse, and equipment areas.
Applications:
• Water tank temperature monitoring.
• Pipe and equipment temperature monitoring.
• Refrigerator and freezer monitoring.
• HVAC duct and machine room monitoring.
• Greenhouse temperature automation.
• Pump and heater control with TH Series controller.
• Cold room and storage temperature monitoring.
• Smart home and light commercial monitoring.
• eWeLink temperature automation projects.
Connect Gates Recommendation:
• Recommended for projects that need a reliable waterproof temperature probe connected to SONOFF TH Elite / TH Origin for temperature-based monitoring, alerts, and automation. It is ideal for tanks, pipes, refrigerators, freezers, HVAC areas, and greenhouse applications. For temperature and humidity together, use SONOFF THS01 instead.