Home / Temperature Sensors / DS18B20 Temperature Sensors

DS18B20 Temperature Sensor

The DS18B20 digital sensor provides 9-bit to 12-bit Celsius temperature measurements and has an alarm function with nonvolatile user-programmable upper and lower trigger points. The DS18B20 communicates over a 1-Wire bus that by definition requires only one data line (and ground) for communication with a central microprocessor. In addition, the DS18B20 can derive power directly from the data line (“parasite power”), eliminating the need for an external power supply. Each DS18B20 has a unique 64-bit serial code, which allows multiple DS18B20s to function on the same 1-Wire bus. Thus, it is simple to use one microprocessor to control many DS18B20s distributed over a large area. Applications that can benefit from this feature include HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.


DS18B20 Temperature Sensor with Metal Tip & 14 meters Cable


DS18B20 Waterproof Temperature Sensor


DS18B20 Temperature Sensor with Plastic Tip & 2 Meters Cable


DS18B20 Temperature Sensor, WaterProof


DS18B20 Temperature Sensor with ABS Probe Tip


DS18B20 Temperature Sensor with Audio Connector


DS18B20 Temperature Sensor with 3.5mm stereo connector


DS18B20 Temperature Sensor with PH-3Y connector for RTU


DS18B20 Temperature Sensor with E0508 Connector for Agriculture