Environdata’s Barometric Pressure sensor is designed to measure atmospheric pressure in the range 800 to 1050 hecto-Pascals (hPa).

The sensor uses a MEMS (Micro Electro Machined System) element that has been laser trimmed for accuracy. This provides a highly accurate and stable sensor at a reasonable cost.

Features at a Glance

• MEMS element (Micro Electro Machined System)
• High quality low power electronics
• Fully calibrated and compensated
• Frequency output
• Sealed housing with weatherproof vent

• Atmospheric Pressure
  • Hectopascals (hPa)
  • Kilopascals (kPa)
• Offset to Mean Sea Level Pressure or
• Record actual site pressure

• General meteorology
• Applied meteorology
• Environmental studies
• Scientific research
• Atmospheric pressure corrections and compensations

• Weather Maestro
• WeatherMaster 3000
• WeatherMate 3000
• Standalone to PLC

The sensor housing is fully sealed to protect the electronics from the weather and includes a Gortex vent that allows the pressure changes to be detected without allowing moisture into the sensor electronics.

A two point factory calibration ensures high accuracy over the operating range.

The sensor is normally housed in the LH35 weather station cabinet. Housing must be vented to atmosphere but provide a ‘static pressure’ environment to remove pressure effects of wind over the sensor aperture.

The sensor cable is 3 core custom wound, which is shielded and UV stabilised with a weatherproof connector.