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MS5839-02BA Chlorine Resistant Pressure Sensor for 300-1200 mbar
Pressure Medium: Air/Gas, Harsh & Liquid Environments
Sensor Type: Absolute, Barometric
Supply Voltage: Under 5V
Output Signal: Digital
Pressure Range: 4” H2O to 3 psi, 3-300 psi
Kind: Board Level

The MS5839 is an ultra-compact (3.3 x 3.3 x 2.75 mm) digital altimeter that is optimized for applications where chlorine and saline are present. the robust, gel-filled design of the MS5839 enables operation in harsh media environments while providing accurate and reliable digital measurements.

This MEMS-based sensor offers advanced water resistance, chlorine resistance, shielding, low power consumption and digital interconnectivity in an ultra-compact, low profile package. The board level design delivers sensing accuracy for both pressure (±0.5 mbar) and temperature (±2°C) measurements.


  • Ceramic - metal package, 3.3 x 3.3 x 2.75 mm
  • High resolution module 13 cm
  • Fast conversion down to 0.5 ms
  • Low power, 0.6 µA (standby less than 0.1 µA at 25°C)
  • Supply voltage 1.5 to 3.6 V
  • Operating range for MS5837-02BA: 300-1200 bar, -20°C to +85°C
  • I2C interface
  • No external components
  • Excellent long term stability
  • Water resistant sealing with 1.8 x 0.8 mm O-ring
  • Shielded metal lid

Typical Uses

  • Swim watches
  • Fitness trackers
  • Diving computers
  • Underwater vehicles
  • Dataloggers