The AN20 is the smallest Speedrite energizer. Designed specifically for small fence lines the AN20 is used to protect trees and waterways from livestock damage or, to protect the garden from pests. The economical AN20 uses just 2×1.5V D cell batteries

The AN90 is the most powerful dedicated stripgrazing unit available. Ideal for longer lengths of portable fence. • Two pulse speed option and indicator light • Clips directly onto wire for strip grazing • Internally powered by 4 x 1.5V D cell batteries or