Video coming soonInspect a live sensor
Basics · Written steps
Read the steps : Inspect a live sensorHow to use Sensor test
Steps, videos and tips for the tool.
Check that the phone's sensors work: motion, compass, light, proximity, air pressure, GPS and microphone.
Watch how it works.
Video coming soon
Getting started
Inspect a live sensor
Each sensor runs live on its own tile, with its state: Working, To check, or Not on this phone. Tap one for its page: its reading, the last seconds as a graph, its chip and range, and the tools that use it. The GPS and the microphone run only on their own page, once you allow them.
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Read the stepsBasics
Video coming soonVideo coming soonRun the guided checkup
Basics · Written steps
Read the steps : Run the guided checkupVideo coming soonChoose a layout and share the report
Basics · Written steps
Read the steps : Choose a layout and share the reportVideo coming soonInspect GPS satellites and signal
Basics · Written steps
Read the steps : Inspect GPS satellites and signalStep by step.
Get started
Choose a layout and share the report
Use ⋮ › Screen layout to try the screens: Live tiles (each sensor as a small live instrument), Sensor list and Checkup (the guided test, with a Sensors tab). Share report sends the results as text.
Measure
Inspect a live sensor
Each sensor runs live on its own tile, with its state: Working, To check, or Not on this phone. Tap one for its page: its reading, the last seconds as a graph, its chip and range, and the tools that use it. The GPS and the microphone run only on their own page, once you allow them.
Run the guided checkup
The checkup (⋮ › Run checkup, or the first tab of the Checkup layout) walks you through short steps: lay it flat, turn it, draw a figure 8, cover the top, say something and, outside, find satellites. It ends with which of the app's tools can run on this phone.
Inspect GPS satellites and signal
Open GPS for a live satellite list: navigation system and ID, signal strength (C/N₀), elevation above the horizon and azimuth clockwise from north. Each satellite shows whether it is used for the location fix. Higher C/N₀ means a stronger signal. Allow precise location and go outdoors for better reception.
Guided tour
Try these steps in the app. All tour instructions stay readable here.
Inspect a live sensor
Each sensor runs live on its own tile, with its state: Working, To check, or Not on this phone. Tap one for its page: its reading, the last seconds as a graph, its chip and range, and the tools that use it. The GPS and the microphone run only on their own page, once you allow them.
Run the guided checkup
The checkup (⋮ › Run checkup, or the first tab of the Checkup layout) walks you through short steps: lay it flat, turn it, draw a figure 8, cover the top, say something and, outside, find satellites. It ends with which of the app's tools can run on this phone.
Choose a layout and share the report
Use ⋮ › Screen layout to try the screens: Live tiles (each sensor as a small live instrument), Sensor list and Checkup (the guided test, with a Sensors tab). Share report sends the results as text.
Inspect GPS satellites and signal
Open GPS for a live satellite list: navigation system and ID, signal strength (C/N₀), elevation above the horizon and azimuth clockwise from north. Each satellite shows whether it is used for the location fix. Higher C/N₀ means a stronger signal. Allow precise location and go outdoors for better reception.
Get the tool.
Find Sensor test in these apps.
Tips.
Angles look off? Lay the phone on a flat table: the accelerometer should read about 9.81 m/s². A compass that drifts needs a figure 8, away from metal.