Professional Quality Satellite Meter. You can aim and peak 2 satellites at the same time with this meter. Audio on/off,Adj. LCD contrast. Measures Receiver voltage output and tests coax cable runs. This meter is powered by the voltage from the receiver by merely inserting it inline between the Dish the receiver. This meter can also be purchased as a kit with the  following Accessories: Re-chargable battery pack, AC charger, DC car charger, Leather carry case with belt clip, and 2 Jumper cables. Or you can add the accessories later.( See these other items in this same category.)