It is a kind of simple instrument which used for satellite receiving antennaand 39 s installation and adjustment , it can adjust the direction of antenna, feed location and as indicators of the project such as polarization Angle, make the position of the antenna to achieve the best. Features: Fully DVB compliant, live FTA digital picture and sound. 3.5 inch LCD Color screen. 3000mA battery, normal work up to 4 hours. Support AV in or outt function, 13V or 18V or LOCK status panel LED display directly and battery power display. Plug and Play installation, with an easy to use menu system. Specifications: Color: black, yellow (optional) PAL or NTSC: automatic PAL or NTSC conversion Channels number: 6000 channels TV and Radio programmable Favorites: 8 different favorite groups selection OSD Language: EnglishGermanFrenchPortugueseSpanishItalianRussianTurkishPolishArabicFarsiEspanolDeutsch OSD color: 16-bit OSD with -flickering Channel search: channel search in automatic, manual and network search Channel edit: various channel editing function Battery: Li-ion 3000mAh Power supply: DC12V or 1500mAh (Input 100V-240V, 50 or 60Hz) Item size: 15.9 x 9.4 x 4.4cm or 6.26 x 3.70 x 1.73in Item weight: 431g or 0.95lb Package size: 20.5 x 18 x 6cm or 8.07 x 7.09 x 2.36in Package weight: 850g or 1.87lb Package list: 1 x Digital Satellite Meter 1 x Power Adapter 1 x AV Cable 1 x Car Chargeing Cable 1 x Carrying Bag 1 x User Manual