The newly updated Magnum 12 features Parmak`s exclusive built-in performance meter tells you the exact condition of your fence line as well as the condition of your battery. It takes the guess work out of electric fencing. With more power than you ever imagined possible from a battery fencer, the Magnum 12 features output equal to power line operated models. It shocks through wet weeds and brush and has no moving parts which means years of dependable, trouble free services. The most economical 12-volt solid state fencer operation on the market. The Magnum 12 provides up to three months of continuous operation between battery charges. This is a weatherproof, portable outdoor model for installation anywhere on your farm including medium to large pastures.