The device shown in the picture is a CCTV Tester (device for testing and installing surveillance cameras). Uses Surveillance camera technicians use it for: Displaying the camera's image directly during installation. Testing analog CCTV cameras. Testing image and signal quality. Testing video and power cables in some models. Facilitating camera angle adjustment without the need for a large screen. Contents of the offer From the picture, it appears to come with: Testing device. Charger. Case/pouch. RFID tag (likely for testing access systems if supported).