Patriot PMX350 Fence Energizer AC- 3.5 Joule Reels use 2 of these insulators

use 2 of these insulators and spaced slightly less than 90 degrees off center from one another to ensure good wire offset from posts

the O'Brien Treadalines and will likely break if an animal goes through the fence

Others have beed edited

IMPORTANT NOTES: You must turn the unit off if you are not going to be using it for more than a week

Patriot PMX350 Fence Energizer AC- 3.5 Joule Reels use 2 of these insulatorsThis AC powered 3. 5 joule charger is ideal for powering areas of 40 acres or less. Grounding condition can increase or decrease energizer coverage. We recommend starting with installing 2, 6' ground rods spaced at least 10' apart and linked together with a coated or galvanized wire. Use a quality voltmeter to test voltage around property to measure ground return and install more ground rods if necessary. We strongly recommend the use of a voltmeter