Night-time That's as Bright as Day: Harness the power of a 4K camera combined with MaxColor Vision technology. eufyCam S3 Pro captures exceptionally detailed surveillance footage in every frame, offering day-like image clarity even in ultra-low light conditions without the need for a spotlight. Reliable Solar Power System: Experience peace of mind year-round with continuous, reliable security powered by SolarPlus 2.0 technology. Choose the built-in panel for streamlined efficiency or add an external panel to expand energy coverage. This system offers versatile mounting options and reliable backup power for continuous security. (Two external solar panels included). Radar Detection Alerts Only What Matters: The dual motion detection system, combining radar and passive infrared (PIR), accurately identifies human movement and reduces false alerts by 99%. Alerts are only triggered by major security events in specified areas. Local Security*, No Monthly Fee: The eufyCam S3 Pro 4-Cam Kit features the HomeBase 3 (S380), which includes a 1TB hard drive that can be expanded to 16TB without any monthly fees. This kit is equipped with self-learning AI for intelligent management, enabling seamless control over group settings while ensuring your privacy remains secure. *If you choose to use cloud-based features such as cloud storage or push notifications with thumbnail previews, videos, or thumbnail previews will be sent to the cloud, as needed, to provide your selected features. Compatible with Apple Home, Alexa, and Google Assistant: (The video footage will be 1080P resolution when using Apple Home.)