Use the same connection, firmware and profile when repeating a check. These measurements describe browser input and do not assign a hardware health score.
Choose a guided measurement.
Trigger Travel · Last 6 Seconds
Slowly squeeze and release each trigger. A digital or instant-trigger mode can jump directly between endpoints.
— Left trigger– – Right trigger
Observed Press / Release Counts
↓ Presses · ↑ Releases. Counts start at observed state transitions; a control already held when sampling begins has no recorded press. Brief events between browser samples can be missed.
How to read these measurements
The guided sweep records the greatest radius in each of 32 direction sectors. A direction counts as covered at radius 0.75. Outline deviation is the mean absolute difference from radius 1, shown only after all directions are covered. An intended square response can have higher deviation.
Centring records four releases per stick: left, right, up and down. After input returns below radius 0.5, it settles for 0.4 seconds and averages the following 0.4 seconds, with at least five samples. Position spread is the greatest distance from the average of those four positions. Filtering can affect all results. This is not a latency or hardware polling-rate test.
Connect a controller to check browser rumble support.
Did you feel the vibration?
Resting-Stick Measurement
This describes the input exposed by your browser. Firmware and remapping software can already apply deadzones. These readings do not certify hardware condition.
Raw readings & input history
Indices are shown as reported by the browser. Unknown layouts are not assigned stick or trigger names.
Waiting for controller input.
GUIDED CHECKUP
Check Every Control.
Step 1 of 5
Buttons
Triggers
Stick drift
Stick range
Results
Connect a controller to begin.
Save, export or compare this session
KEEP YOUR BASELINE
Save Or Export This Session
Stored on this device
Snapshots stay in this browser. Export a report before clearing site data or moving to another device.
Saved snapshots & comparison 0
Choose two records to compare. Imported files are checked locally and never uploaded.
By EmuCores · Setup guide · Updated 30 October 2026
Connect Your SteelSeries Controller
For Stratus Duo on Windows, start with its 2.4 GHz receiver or USB connection. Its Bluetooth support is marketed for Android/mobile use, so a Bluetooth pairing alone does not establish the intended Windows input path.
For Stratus+, the manufacturer specifies a wired USB-C to USB-A connection for Windows. Bluetooth LE is specified for Android and Chromebook. Keep these two models separate when troubleshooting a missing gamepad.
Confirm the controller’s platform mode and supported connection. Use a USB data cable or the receiver specified for that exact model.
Focus this page, press a face button and choose the responding device from the connected-controller menu.
Press and release each control. Check raw indices if the device has no standard mapping.
Record your connection, software profile and trigger-stop setting before saving a snapshot.
Model setup at a glance — PC connection guidance
Model
Connection to check
Setup / interpretation
Stratus Duo
USB / Receiver
For Windows, start with USB or the 2.4 GHz receiver. SteelSeries GG does not support this model. Manufacturer guidance
Stratus+
USB
Windows support is specified over wired USB. Bluetooth support for Android/Chromebook is a separate connection path. Manufacturer guidance
Connections vary by edition and operating system. This table records setup guidance, not a physically verified browser result.
MODEL NOTES
Choose Your SteelSeries
ControllerTester illustration
SteelSeries
Stratus Duo
USB · Receiver
Stratus Duo separates PC receiver use from Bluetooth mobile use. Its name should not be confused with the newer Stratus+.
Specifications & testing tips
Platforms
PC / Android
PC connections
USB / Receiver
Configuration
Stratus Duo does not use GG
Connections
2.4 GHz receiver and Bluetooth modes
Triggers
Hall-effect magnetic sensing
Sticks
Clickable analog sticks
Before You Test
For Windows, start with USB or the 2.4 GHz receiver. SteelSeries GG does not support this model.
Start with the normal manufacturer-supported PC connection. Record firmware, connection and profile before saving a snapshot.
What To Check Here
Press each face button and direction once. Use the raw input list if the browser has no standard mapping.
Move the sticks around their range, release them and run the resting-stick test. Save the active profile alongside the results.
Squeeze and release both triggers. A short-travel or digital mode can change the values you observe.
Rear buttons can repeat existing inputs. Browser rumble does not test motion sensors, audio or adaptive-trigger resistance.
Illustration reference: Model appearance reference. AI-generated illustration based on the model reference; small details and colour may vary. Colour and included accessories may vary.
Illustration reference: Model appearance reference. AI-generated illustration based on the model reference; small details and colour may vary. Colour and included accessories may vary.
SteelSeries states that Stratus Duo is not supported by GG and uses the standard controller drivers provided by the connected device. Installing GG is therefore not a remedy for a missing Stratus Duo entry in this tester.
If a receiver-connected Duo is unresponsive, check the controller’s connection selection and receiver pairing before changing browser labels. If a wired Stratus+ only charges, test a known USB data cable and a direct computer port.
The browser can expose ordinary buttons and axes without every platform feature. Compare a face-button press and stick movement first, then use the resting-stick measurement if a standard mapping is available.
Turn A Reading Into A Useful Comparison
Check one variable at a time. For unwanted stick movement, release the sticks onto a stable surface and run the ten-second resting test. For a missing action, compare a direct button press with its rear-button assignment. Save a note identifying the active profile so a later result can be reproduced.
The browser-reported device name can describe a virtual gamepad. The optional model reference is your selection, not automatic hardware identification. Brand listing does not guarantee vibration, independent paddles or vendor-specific controls in your browser.
SteelSeries states that Stratus Duo is not supported by GG. Check the USB or receiver connection and the standard device driver first.
Does Stratus+ Bluetooth equal Windows support?
SteelSeries specifies wired USB for Windows. Its Bluetooth support for Android/Chromebook is a separate path. Use the correct connection before troubleshooting the browser.
Documentation reviewed 29 October 2026. Setup guidance, not a hands-on product review or a certification of browser support.
ControllerTester illustration