How to calibrate
Step 1: Point at a clear blue sky (no clouds). Press Step 1 to set the sky NIR reference using solar irradiance at your location and time (700-1100nm).
Step 2: Completely cover the camera lens with your hand or any opaque object to capture the zero reference (dark offset). Location is requested automatically on start. Press Update Location to refresh.
💾 Calibration saved to this device. Each device stores its own calibration independently.
All reported values are incident irradiance at the filter surface (pre-filter, true scene values), not values reaching the camera sensor. Filter transmission factors (NIR: 87%, Melanopic: 4%) are applied internally.
Location not enabled.
NIR ref (mW/cm²)–
Mel ref (mel-lux)–
Live NIR signal–
Live blue ch.–
Gamma (auto)–
Camera ISO–
ISO factor–
Dark offset (NIR)–
Dark offset (blue)–
Manual calibration (reference meter)
Enter known values from a calibrated radiometer while pointing at the same source.