Feature: 1. Working Principle: The receiver has a built in induction coil to receive the magnetic signal from the pipeline. The coil generates an induction current to calculate the direction and position of the transmitter. 2. Accurate Positioning: The pipe blockage detector adopts the principle of electromagnetic induction and can accurately locate the blocked place in the pipeline to facilitate maintenance. 3. Strong Signal Penetration: The signal penetration of the pipe clogging scanner is strong, and the signal can penetrate the soil and brick wall, which is very useful. 4. Durable: The underground pipel blockage detector is made of premium ABS material, which is sturdy and durable, and has a good touch when held in the hand. 5. Fully Equipped: This pipeline blocking finder is equipped with a transmitter, USB cable, button battery and charging head, which is a complete set of equipment and easy to use. Specification: Item Type: Pipeline detector Material: ABS Weight: Approx. 690g/24.3oz Technical Parameters of Receiver: Receiver Frequency: 512HZ Energy Consumption: ＜ 3W Distance: About 5m/196.9in Battery: 3.7V 2600mAH built in lithium battery Loader: 5V 1A Loading Time: About 6 hours Battery Indicator: 3 gears, flashing when the battery is low Battery Working Time: About 10 hours Signal Strength: 6 gears Speaker: Support Detection Mode: Vertical, near Voltage: 100-240V Technical Parameters of Transmitter: Transmitter Frequency: 512HZ Output Wave: Sine wave Battery: 1.5V LR44(Shipped with supporting battery) Transmitter Distance: About 5m/196.9in. Package List: 1 x Detector1 x Launcher1 x USB Line1 x Button Battery1 x Charging Head1 x Instructions