MSL or Mean Sea Level is the average height of the ocean surface. Mean sea level is a significant datum reference for meteorological and altitude related pressure measurements, e.g. standard atmospheric pressure at mean sea level is 1013.25 hPa or 29.92 inHg.
Atmospheric pressure measurement products
- 500-1100 mbar absolute range 0-5 volts output barometric pressure sensor
- Outside HVAC 900-1100 mbar abs baro range 4-20mA signal pressure sensor
- Barometric 550 to 1150 hPa abs high resolution pressure transmitter
- 800 to 1200 mbar atmospheric pressure transmitter
Glossary of Pressure Reference technical terms
- Gauge Reference Pressure
- Negative Gauge Pressure
- Reference Pressure
- SG – Sealed Gauge
- Vented Cable
- Vented Gauge
Help from Pressure Reference resources
- Measuring negative pressure using a positive differential pressure range
- Measuring vacuum with negative gauge or absolute ranges
- What is the difference between gauge and absolute pressure measurement
- Not Reading Zero when Pressure is Vented to Atmosphere
- Can you measure vacuum using a gauge pressure range
- What does negative and positive gauge pressure mean
- Can you have a minus 20 psi gauge vacuum measurement range