AKO B150 Battery Fencer 9V Battery Type Battery Included – Very efficient and universal 9V battery energiser for fence installations with little growth – Easy handling – Optical control for fence voltage – Optical control for 9V battery voltage – Rotary switch enables you to choose 5 different power levels to adjust to different fence conditions – Robust casing with easy to use latch – New and convenient ground rod holder allows comfortable positioning – 12V operation possible – 3 year guarantee