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.
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Glossary of Pressure Reference technical terms
- Absolute Pressure
- Compound Pressure Ranges
- Differential Pressure
- Gauge Reference Pressure
- Negative Gauge Pressure
- Reference Pressure
- SG – Sealed Gauge
- Suction Pressure
- Vacuum
- Vented Cable
- Vented Gauge
Help from Pressure Reference resources
- How do you choose the correct pressure range for a pressure sensor
- What is the difference between sealed gauge and vented gauge reference?
- Measuring vacuum with negative gauge or absolute ranges
- What is the difference between gauge and absolute pressure measurement
- Pressure device not reading zero? Get troubleshooting tips
- Can you measure vacuum using a gauge pressure range
- What does negative and positive gauge pressure mean
- Measuring negative pressure using a positive differential pressure range
