Commonly used digital DS18B20 temperature sensor is a temperature sensor through the stainless steel tube package, so as to achieve the waterproofing, insulation, protection, heat conduction effect, can be used for various measurement in harsh environment.

DS18B20The main parameters of elements:

Single line interface unique,DS18B20Only one line can be realized in microprocessor and connected with the microprocessor whenDS18B20Two-way communication.

The temperature range of -55C ~+125C, in-10~+85℃ accuracy is ±0.5C

③DS18B20Support multi-point network function, multipleDS18B20Can be connected in parallel in three online only, achieve network multi-point temperature measurement. If the amount is too much, will make the power supply voltage is too low, resulting in the instability of signal transmission.

The working power supply: 3.0~5.5V/DC(data line parasitic power)

5.DS18B20In use does not need any external components, all sensor and conversion circuit are integrated into the shape of a transistor in integrated circuit

The programmable resolution9~12A, the corresponding resolvable temperature respectively.0.5C,0.25C,0.125C and0.0625C, can achieve high precision temperature measurement

The pressure features: power supply polarity reverse connection, the chip will not burn with fever, but not normal.

When ordering, please inform the following parameters:

Installation dimension of 1 element DS18B20: common 6x30mm, 6x50mm (other size customization)

2 wire output? (usually 2 wire /3 wire choose one)

3 wire requirements? (high temperature / wear / corrosion / ex / water / other)

The 5 lead line length? (common 1M/2M/3M/4M/5M standard)

Tail 6 compensating conductor? (tin /U terminal / metal wire / terminal)

7 other special requirements, special occasions custom please explain in detail