The Shelly Temperature Sensor DS18B20 3.5mm jack is a digital temperature sensor designed for Shelly compatible controllers such as The Pill by Shelly and extension modules from other manufacturers. The sensor features a 3.5 mm jack connector, enabling easy Plug&Play installation. Its compact design and 1-meter cable allow flexible placement at various measurement points.
The DS18B20 sensor provides accurate digital temperature measurement, making it an ideal solution for smart home automations, heating control, server rack monitoring, water temperature measurement, aquariums, tanks, or greenhouse monitoring thanks to its wide operating range from -55°C to +125°C. Integrated into the Shelly ecosystem, the sensor enables automations, alerts, and smart control logic based on measured data.
Thanks to digital communication, the sensor ensures stable and precise data transmission. Multiple DS18B20 sensors can be used within a single system, allowing simultaneous monitoring of several measurement points. With the help of a 3.5 mm jack splitter, Shelly The Pill can manage up to 5 DS18B20 sensors at the same time.
The stainless steel probe and durable cable construction make the sensor suitable for long-term operation. Its compact size and simple integration make it an excellent choice for both DIY projects and advanced automation systems.
Application Examples with The Pill by Shelly
- Water temperature monitoring: Ideal for aquariums, pools, boilers, or water tanks. Real-time sensor data allows automation of heating or circulation systems to maintain the desired temperature.
- Indoor and greenhouse climate monitoring: Continuously tracks temperature and humidity in living spaces or plant cultivation environments. Based on sensor data, ventilation, humidification, or heating can be automated.
- Battery system supervision: Especially useful in low-voltage systems where stable operation is critical. Continuous voltage monitoring helps detect irregularities early and prevents failures or performance loss.
- Custom automation solutions: Flexible input and output configuration combined with scripting capabilities enables implementation of complex custom logic for residential, industrial, or business automation tasks.
About the Shelly Brand
Shelly is one of the most recognized and innovative smart home brands in Europe, developed by the Bulgarian company Allterco Robotics. The manufacturer is particularly strong in the market of Wi-Fi and Bluetooth-based smart devices, whose key advantage is that they typically operate without a central hub, allowing quick and simple installation using only a Wi-Fi network.
The Shelly product portfolio is extremely broad and includes relays, sensors, smart plugs, lighting solutions, and professional DIN rail mounted devices. The brand strongly focuses on local control, meaning devices can continue operating without internet access, offering improved reliability and data security.
Shelly devices offer advanced integration capabilities with native support for REST API, MQTT, and Webhook communication protocols. This makes them easy to integrate with platforms such as Home Assistant, openHAB, Node-RED, and other DIY systems. They are also compatible with cloud platforms including Google Home, Amazon Alexa, and Samsung SmartThings.
The manufacturer continuously develops its products, and the latest generations already include Bluetooth gateway, Wi-Fi range extender, and additional networking functions. Shelly products are especially popular among advanced users and installers, while remaining easy enough for beginners to use.
Main Product Features
- Digital temperature sensing: Accurate and stable temperature measurement with digital data transmission.
- 3.5 mm jack connector: Fast and easy Plug&Play connection to compatible Shelly devices or other systems.
- 1-meter cable: Flexible installation at various measurement locations.
- Stainless steel probe: Durable design for long-term use.
- Multiple sensor support: Several DS18B20 sensors can operate within the same system using a splitter.
- DIY compatibility: Ideal for developer projects and custom automation solutions.
Integration Options and Smart Home Compatibility
- Shelly ecosystem compatibility: Designed for Shelly compatible controllers including The Pill by Shelly.
- Local control support: Works with local automations without requiring cloud connectivity.
- MQTT and REST API compatibility: Easily integrates into advanced smart home and automation platforms.
- Home Assistant support: Can be integrated into Home Assistant based systems.
- Node-RED and openHAB compatibility: Suitable for custom automation workflows and monitoring.
- Multi-sensor capability: Supports simultaneous operation of multiple DS18B20 sensors.
- DIY and maker friendly: Compatible with custom electronics and automation environments using the 1-Wire protocol.
Technical Specifications
- Product type: Digital temperature sensor
- Sensor type: DS18B20
- Connector: 3.5 mm jack
- Cable length: 1 meter
- Communication: 1-Wire digital interface
- Measurement function: Temperature sensing
- Sensor housing: Stainless steel
- Compatible devices: Shelly The Pill
- Application areas: Indoor automation, water temperature monitoring, server monitoring, HVAC systems, aquariums, greenhouses
- Installation: Plug&Play connection
- Color: Black cable with metal sensor probe
