This is the internal gauge works for the Tempest WallGauge. Like the Tempest Multi Gauge above it requires a Gauge Data Transmitter (GDT) with a GDT software maintenance subscription, and 12 AAA batteries (The expected battery life is 5 to 7 years). 


The gauge works are designed to slip into a 11.75” diameter hole from the back with a depth of 1.8”.  The front of your case should have an 11” hole so the gauge face is visible and still hide the mounting hardware.  The gage works come with the gauge face, 4 WallGauge PCBs, outside Expansion Ring, and a clear acrylic face.  The Gauge works are assembled and tested in a self contained unit that can slide right into your case.


The gauge face is designed to give the observer a quick account of the current and forecast conditions.  The big gauge shows the current temperature as observed by your Tempest Weather System.  The smaller two temperature gauges in the top half of the gauge face show the forecast high and forecast low temperature for the day.  The bottom gauge is really two gauges in one.  The first gauge to the left side of zero is the chance of precipitation for the day.  The second gauge on the right side of zero is the accumulated precipitation observed during the day.  


The values displayed by the gauges will be updated about every 5 minutes. This Gauge requires a WallGauge Gauge Data Transmitter (GDT) to be 20 feet away or closer and in clear line of site.  One GDT can source several gauges so if you already have a GDT in the room you can use that GDT to send data to this gauge.  


You must have a Tempest Weather System installed and connected to the WeatherFlow cloud for this gauge to work.  The GDT will run our Tempest Weather gauge app to communicate with the WeatherFlow cloud API.  During setup you will be required to enter an API key giving the GDT permission to connect to your weather data.


The Tempest Weather System is a product of WeatherFlow and not included.  WeatherFlow is not associated with WallGauge and this gauge is the property of WallGauge, LLC.  By purchasing this gauge you agree to our purchase agreement, terms and conditions, and privacy policy as posted at


Some of the plastic parts inside the gauge are made of Expanded Polyvinyl Chloride.  WARNING: This product can expose you to chemicals including Polyvinyl Chloride, CAS 9002-86, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to


By purchasing the Product, Purchaser agrees that Purchaser has read, understands, and accepts the WallGauge purchase agreement.

Tempest Multi Gauge (Build your own case)