The Dahua DH-SD2A400HB-GN-AGQ-PV-SP-EAU is a versatile PTZ security camera designed for remote monitoring where traditional power sources are unavailable. It captures clear 4 MP images using a 1/2.8" CMOS sensor and a 4mm lens, providing a wide diagonal field of view of 101° to cover a broad area. To ensure visibility regardless of the time, the device combines 30m infrared and white light illumination, while an F1.6 aperture helps maintain image quality in low-light conditions. This system is built for energy independence, featuring a 5.5 W monocrystalline solar panel that charges an internal 10 Ah lithium-ion battery. This setup allows the camera to operate in sleep mode for up to seven days with an hour of remote viewing daily. Connectivity is flexible, supporting 4G LTE networks for wireless transmission or a standard RJ-45 Ethernet port for wired setups. For storage, you can use a Micro SD card up to 512 GB, or save footage via FTP and NAS. Active security is handled by a PIR sensor that detects movement up to 10 meters away, triggering a white light flash or a sound alarm to deter intruders. You can communicate with people on-site using the integrated microphone and speaker for two-way conversations. The hardware is housed in an IP66-rated enclosure that protects against dust and water, and it includes TVS 2000 V lightning proofing to withstand electrical surges in outdoor environments.