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Digital temperature sensor DS18B20

Material: Semiconductor ceramic/injection molded shell

Operating temperature range: -55℃〜125℃

Response speed: 3S

Output signal: digital output


1. Unique single line interface, only one interface pin is required for communication;
2. Each device has a unique 64 bit serial code stored on a CD;
3. Multi point capability simplifies distributed temperature detection applications;
4. No external components are required;
5. It can be powered from a data cable, with a power supply voltage range of 3.0V to 5.5V;
6. The measurement range is from -55 ° C to+125 ° C (-67 ° F to 257 ° F), with an accuracy of 0.5 ° C from -10 ° C to+85 ° C;


Voltage: 3.3V to 5V
Temperature range: -55 ° C~+125 ° C
Interface: Digital (single bus)
Size: 22x32mm
Weight: 12g


1. Temperature control and detection of household appliances such as induction cookers, electric pressure cookers, rice cookers, electric ovens, disinfection cabinets, water dispensers, microwaves, electric heaters, etc;
2. Temperature detection and compensation of medical equipment (such as copiers, printers, etc.);
3. Temperature control and testing of industrial, medical, environmental, meteorological, and food processing equipment;
4. Temperature protection for charging battery packs and chargers;
5. Temperature compensation for instrument coils, integrated circuits, quartz crystal oscillators, and thermocouples.

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