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--- start [2026/03/29 13:55] – [Importance of barometers] admin
+++ start [2026/05/14 20:28] (current) – [Barometer troubleshooting] admin
@@ Line 516: / Line 516: @@
 Why devote an entire wiki to just one weather sensor?
-Barometers, can be one of the most difficult weather sensors to set up properly. My informal annual survey of surrounding weather stations reveals that only a few percent of weather station owners have managed to successfully set up and calibrate their barometers.
+Barometers, can be one of the most difficult and frustrating weather sensors to set up properly. My informal annual survey of surrounding weather stations reveals that only a few percent of weather station owners have managed to successfully set up and calibrate their barometers.
 Hopefully, these guides, tutorials and how-to's will shed some light on the subject of barometers - what they are measuring, how to set them up and how to keep them calibrated and accurate,
@@ Line 523: / Line 523: @@
 ===== Barometer troubleshooting =====
-updated 23 Dec 2025
+updated 14 May 2026
 Ecowitt rolled out a new firmware update in 2025 that dynamically calculates SLP (sea level pressure) factoring in elevation, station pressure,temperature and humidity. This new update is a radical departure from the previous algorithm, where sea level pressures were somewhat crudely approximated using a simple fixed offset.
@@ Line 584: / Line 584: @@
 **Resources:**
-QFE calculator: This calculator uses the term QFE instead of station pressure. QFE is the aviation equivalent to station pressure.
+QFE calculator: This calculator uses the term QFE instead of station pressure. QFE is the aviation equivalent to station pressure. Click on the QFE button to start and enter in your elevation and sea level pressure/QNH.
-See example:https://www.sensorsone.com/elevation-station-qfe-sea-level-qnh-pressure-calculator/?ab=2&v0=300&f0=m&v1=975&f1=hPa&f2=hPa
+See:https://www.sensorsone.com/elevation-station-qfe-sea-level-qnh-pressure-calculator
 Note: For North America and jurisdictions that use altimeter setting instead of QNH, put the altimeter setting value of your airport into the QNH input box of the the calculator.