Temperature Sensor Shelly Temp. Sensor DS18B20 with 3.5 mm Jack

The Shelly Temp. Sensor DS18B20 with 3.5 mm Jack is a wired digital temperature probe designed for use with compatible Shelly devices. It uses the DS18B20 sensor standard to provide accurate temperature readings via a 3.5 mm jack connection, enabling remote placement of the probe while the readout and control remain with the Shelly host. The sensor is suitable for monitoring ambient air, appliances, pipes or other surfaces where a dedicated remote temperature probe is required within a home automation or equipment monitoring setup.

Advantages

This wired DS18B20 sensor offers stable digital temperature measurement with a compact probe and a standardized 3.5 mm jack for straightforward connection to compatible Shelly modules. The DS18B20 digital output reduces susceptibility to interference compared with analog probes and supports accurate readings over a practical temperature range. The wired design allows flexible placement of the probe away from the host device for precise local measurement in HVAC, appliance monitoring or environmental sensing applications.

Suitable for

• Remote ambient temperature monitoring in home automation
• Monitoring temperature of appliances, boilers or HVAC components
• Temperature sensing for fish tanks, refrigerators or cabinets when a remote probe is needed
• Integration into Shelly systems requiring a 3.5 mm jack temperature probe

Key specifications

• Sensor type: DS18B20 digital temperature probe
• Connector: 3.5 mm jack for direct connection to compatible hosts
• Probe format: wired remote probe suitable for placement in confined or remote locations
• Output: digital temperature signal compatible with devices supporting DS18B20 probes

How to use

Insert the 3.5 mm jack into the designated temperature input of a compatible Shelly device. Place the probe tip at the location where temperature measurement is required, ensuring good thermal contact with the measured surface or ambient air. Configure the Shelly host according to its instructions to recognize and report temperature readings from the DS18B20 probe. Verify readings in the Shelly app or the device’s web interface and adjust probe placement if necessary for representative measurement.

Recommendations

For reliable measurements, avoid placing the probe in direct contact with sources of heat that do not represent the environment you intend to monitor, and protect the cable and jack from moisture and mechanical strain. Use appropriate mounting or adhesive methods to secure the probe if it will be exposed to movement or flow. Confirm compatibility with the Shelly model in use and follow the host device’s installation guidelines when routing the cable and connecting the jack.