The Datacolor LightColor Meter is a Bluetooth-enabled, multifunctional tool that fits in your pocket like a personal assistant on set. It continuously transmits both light and color data in real time to your smartphone via the Datacolor LightColor Meter app, available for free in the app store. You can easily optimize your lighting and exposure without letting go of the camera. Synchronize multiple Datacolor LightColor Meters to get real-time light and color temperature measurements simultaneously in multiple locations. This ensures more efficient operation and greater precision.