Need a friendly little monitor for your vehicle’s electrical systems? The Alt Alert can do just that. It warns the operator if the electrical systems voltage range is out of its safe operating range, giving you the opportunity to shut down some of the emergency systems that you no longer need to operate. If the vehicle’s voltage fall below 11.80 volts for more than 7 seconds or if it exceeds 15.50 volts, Alt Alert will modulate either an indicator light or a warning buzz allowing you to take care of the problem before it does damage to your electrical system.