The ElectroBraid Fence Minder™ will continously check to make sure your fence is fully energized. It will warn you, day or night, if it detects a significant voltage drop. If a horse is pressured or panicked and is in contact with your fence for more than three or four seconds, your Fence Minder™ will shut off your energizer to stop further electric shocks; and immediately alert you by siren and/or by auto-dialing your pre-programmed phone numbers