Dahua 4-in-1 Security Camera Tester compatible with all Dahua Cameras HDCVI/ AHD/ HDTVI/ CVBS,PFM905 Support HDCVI/ AHD/ HDTVI/CVBS analog self-adaptive access and switch; Support audio and RS485 control; 4 IPS screen, 800x480 resolution, 16.7M colors; Support video screen shot, video recording, record playback and data monitor; Standard dischargeable Li battery; Dual LED torch light