Features: Through DC power out enables user to inspect; correct camera or confirm installation. Only palm-sized, easy to carry operations. CCTV installation works best detection system is equipped with built-in lithium battery, video input, audio input, seven kinds of standard color bar output terminal and the DC power supply. LED emergency lighting, 5 v1a emergency power output, for power supply, the mobile phone. Camera quality inspecting; image of installation correcting; inspect and repair of monitor system circuit etc. Package Includes: 1 x AHD Tester 1 x Power Adapter(EU/US/AU/UK Plug for optional) 1 x Micro USB Cable 1 x Video Cable 2 x Date Cable 1 x Wrist Strap 1 x UTP Adapter Specifications: Material: ABS Output: DC12V ,1A Video Level: 1VPP Display Screen: 4.3-inch LCD 480 x RGB x 272 (QVGA) resolution, 64K color Screen Adjustment: Video display brightness, contrast, color saturation adjustable, LCD backlight brightness adjustable Video Input / Output: 1 channel BNC Video IN H-D Video Signal: H-D AHD Resolution: D1,720P,960p 1080P note: Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item.