About this item This fits your . Make sure this fits by entering your model number. Vibration and light communications - when the target is located at pi-iking750 the signal flashes with a vibration pulse and a bright blue light. Vibration and light communications - when the target is located at pi-iking750 the signal flashes with a vibration pulse and a bright blue light. Pulse induction (PI) - this technique allows hunting in salt water or in any type of soil at the beach, including black sand. Detection depth stability - new advanced circuits maintain detection distances in the entire battery life unit. Target drift - the increased pulse at the frequency of vibration at the probe tip is close to pinpoint the target. Automatic adjustment - the state of the art microprocessor control design does not require any form of adjustment.