1-Wire barometric pressure sensor TSP200

1-Wire Barometer | Barometric Pressure Sensors TSP200

The TSP200 is a 1-Wire barometric pressure sensor that employs silicon MEMS technology based on piezo-resistive pressure sensor principles. It offers exceptional EMC robustness, high accuracy, linearity, and long-term stability. An application-specific integrated circuit (ASIC) handles A/D conversions and utilizes internally measured temperature for sensor-specific compensation.

This absolute barometric pressure sensor operates within a wide temperature range and features nano power consumption, making it ideal for low-power environmental monitoring applications. The TSP200 communicates via a 1-Wire bus, with each sensor possessing a unique 64-bit serial code.

Two RJ11 connectors facilitate easy daisy-chaining of multiple sensors.


  • Exceptional relative accuracy down to 0.12hPa
  • High electromagnetic compatibility (EMC) immunity
  • Superior linearity and accuracy
  • Convenient installation
  • Outstanding long-term stability
  • Unique 64-bit serial numbers for multi-sensor compatibility


  • Weather stations for greenhouses and plants
  • Monitoring processes in laboratories and manufacturing
  • Altitude chambers
  • Tunnel ventilation systems

The sensor is compatible with the following devices:

  • Ethernet IO module TCW241
  • Ethernet data logger TCW220

Technical Properties:

  • Working pressure range: 300 to 1100 hPa
  • Relative accuracy: (950 to 1050hPa, @25°C) ± 0.12 hPa
  • Absolute accuracy: (950 to 1050hPa, @25°C) ± 1 hPa
  • Resolution: 0.1 hPa
  • Supply voltage range: (1-Wire bus) 4.0 to 5.5 V
  • Maximum supply current: (1-Wire bus) 2 mA
  • Operating temperature range: -20 to +70 °C
  • Operating relative humidity range: 0 to 85 %RH (non-condensing)
  • Dimensions: 85 x 35.1 x 23.5 mm