1、 Product Introduction:

18B20S is a commonly used digital temperature sensor, which outputs digital signals. It has the characteristics of small size, low hardware cost, strong anti-interference ability, high accuracy, and wide temperature range. The 18B20S digital temperature sensor is easy to wire and can be packaged for various applications, such as pipeline type, threaded type, magnet adsorption type, stainless steel packaging type, with a variety of models

2、 Product parameters:

1. The unique single wire interface method allows the 18B20S to achieve bidirectional communication between the microprocessor and the 18B20S with only one port wire when connected to the microprocessor.

2. The temperature measurement range is -55 ℃ to+125 ℃, with an inherent temperature measurement error of 1 ℃.

3. Support multi-point networking function, multiple 18B20S can be connected in parallel on a unique three wire, up to a maximum of 8 in parallel, to achieve multi-point temperature measurement. If the number is too large, it will cause the power supply voltage to be too low, resulting in unstable signal transmission.

4. Working power supply: 3.0~5.5V/DC (can be parasitic power supply for data lines)

5. No peripheral components are required during use

6. The measurement results are transmitted serially in the form of 9-12 digit words

7. The minimum diameter of stainless steel protective tube can reach 4.5mm

3、 Application scope:

This product is suitable for temperature measurement and control fields such as freezers, grain warehouses, storage tanks, telecommunications rooms, power rooms, cable trays, etc.

Temperature measurement and control of industrial equipment such as bearings, cylinder bodies, spinning machines, air conditioners, etc. in confined spaces.

Automotive air conditioning, refrigerators, freezers, and medium to low temperature drying ovens.

Heating/cooling pipeline heat measurement, central air conditioning household heat energy measurement, and industrial temperature measurement and control.