Sonoff AL010 Jack to RJ9 Sensor Adapter for TH Origin/Elite, 2.5mm to 4P4C, White

Older environmental sensors with 2.5 mm jacks often become useless when you upgrade to newer Sonoff Wi-Fi relays that only offer RJ9 ports. The Sonoff AL010 adapter bridges this gap, letting you keep trusted sensors in service without rewiring or buying replacements.

Who is it for

Smart home enthusiasts and professionals using Sonoff TH Origin (THR316/THR320) or TH Elite (THR316D/THR320D) relays who already own compatible sensors such as DS18B20 temperature probes, Si7021/AM2301 temperature-humidity sensors, or MS01 soil moisture sensors.

Main features

• Converts a 2.5 mm 3-pole audio jack to an RJ9 4P4C connector
• Plug-and-play installation, no soldering or configuration tools required
• Compact 10 cm cable with durable ABS housing
• Supports digital sensor data for temperature, humidity, and soil moisture
• Compatible with Sonoff TH Origin and TH Elite series relays

Specifications

• Connector 1: 2.5 mm audio jack (male, 3-pole TRS)
• Connector 2: RJ9 4P4C (female)
• Cable length: 10 cm
• Housing material: ABS plastic
• Colour: White
• Certifications: CE, RoHS

Tips

After connecting the adapter, select the appropriate sensor type in the relay’s app or firmware. Ensure the jack is fully inserted and the RJ9 plug clicks into place for reliable readings.