Viano Tick Repeller, Ultrasonic, IP44, Antitick OKL1Viano Antitick Ultrasonic Tick Repeller The OKL 1 tick repeller is a state of the art, professional device designed from the ground up to effectively repel ticks within a range of approximately 3 meters and with a battery life of up to 6 months. The ANTITICK repeller works by emitting ultrasonic signals in the 45 60 kHz frequency range, which disrupt the function of the Hallers organ in ticks. Ticks use this organ to sense their surroundings and