Optimal protection against rodents in the engine compartment the high voltage plates are mounted in the engine compartment and in contact scare the rodent if this has not already expelled by the ultrasonic waves from the engine compartment thanks to the low current consumption it is completely harmless to humans features 6 high voltage platelets 12 volts technical specifications operating voltage 10 15volt current consumption 20ma audio frequency 12 khz high voltage 300 700volt