Sonoff Sensor Adapter – Jack to RJ9 Converter for TH Elite Compatibility

The Sonoff Sensor Adapter (Jack to RJ9 Converter) is a practical accessory that allows users to repurpose legacy Sonoff TH16 sensors with the newer Sonoff TH Elite smart switch. If you’ve previously invested in sensors like the DS18B20, TH Sensor, or MS01 Soil Moisture Sensor with a 2.5mm audio jack interface, this converter ensures seamless compatibility with the RJ9 input on the TH Elite.

Ideal for smart home enthusiasts and installers looking to upgrade without replacing existing sensors, this adapter offers a cost-effective and plug-and-play solution for expanding your automation setup.

Key Features

• Interface Conversion: Converts 2.5mm audio jack (used in TH10/TH16 sensors) to RJ9 4P4C connector for TH Elite and TH Origin
• Plug-and-Play Design: No soldering or rewiring required—just connect and automate
• Compact & Durable: Lightweight build with secure fit for stable signal transmission
• Preserves Sensor Investment: Continue using older Sonoff sensors with newer smart switches
• Reliable Performance: Maintains data integrity across temperature, humidity, and soil moisture sensors

Compatible Sensors

Use this adapter to connect the following jack-based sensors to TH Elite or TH Origin:

• Sonoff DS18B20 Waterproof Temperature Sensor
• Sonoff TH Temperature & Humidity Sensor
• Sonoff MS01 Soil Moisture Sensor

Compatible Smart Switches

• Sonoff TH Elite
• Sonoff TH Origin

Use Cases

• Smart Garden Automation: Connect MS01 to TH Elite for soil moisture-based irrigation
• Climate Monitoring: Use DS18B20 or TH sensors for temperature and humidity control
• Greenhouse & Server Room Upgrades: Transition from TH16 to TH Elite without replacing sensors
• DIY Smart Projects: Integrate legacy sensors into modern automation scenes via eWeLink

Why Choose the Sonoff Jack to RJ9 Converter?

The Sonoff Sensor Adapter bridges the gap between older sensors and newer smart switches, making it easier to upgrade your system without starting from scratch. With reliable performance and universal compatibility across Sonoff’s sensor lineup, it’s the perfect tool for smart home scalability.

Upgrade smarter. Connect seamlessly. Automate with confidence.

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