BX-TD01PH3Y modbus RTU ds18b20 temperature sensor

Digital Signal Output

Fast and Accurate Temperature Sensing

Strong impact resistance, highly water resistance and long life span

No external components, unique single bus interface


The DS18B20 digital thermometer 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. 


  • Power supply range: 3v to 5.5v
  • Adjustable resolution: 9-12 bits
  • Operating temperature range: -55 ° C to + 125 ° C
  • Cable length: 1m, 2m, can be customized
  • Probe:  copper (5*25/6*25) ,            stainless steel (4*20/4*50/6*30/6*50/7*38/6*25)ABS(black /white)(7*25/8*30/9*50)



  • Connector: Aviation waterproof plug, Audio Jack, Molex, JST, DuPont, CJT, etc.
  • Cable material: can be silicone,pvc,shield,teflon,telephone wire,braided wire,thermal casing, TPE, or customized


DS18B20 temperature sensor assemble diagram



HVAC environmental controls, temperature monitoring systems inside buildings, equipment, or machinery, and process monitoring and control systems.