ADVANCED ELECTROMAGNETIC INDUCTION TECHNOLOGY - Utilizes advanced electromagnetic technology with ±5cm accuracy to detect metal and PVC pipes. Perfect for locating shallow blockages in household sewer systems and garden pipes. Not suitable for environments with strong magnetic interference ADJUSTABLE SENSITIVITY FOR PRECISE DIAGNOSIS - Customize the receiver sensitivity to accurately locate blockages. The transmitter's detection range reaches up to 30m (100ft), ensuring precise results even in complex pipe layouts. Ideal for home renovations, plumbing inspections, and diagnosing hidden blockages VERSATILE DETECTION DEPTH FOR VARIOUS ENVIRONMENTS - In non-magnetic environments, the transmitter and receiver can detect up to 50cm in open air, 0-25cm behind drywall, and 0-15cm in concrete. Perfect for tracing shallow pipes, floor drain inspections, and sink outlet diagnostics. Not recommended for deep-buried pipes or high-interference areas COMPATIBLE WITH LARGE-DIAMETER PIPES - Suitable for pipes with smooth inner walls and larger diameters. Can pass through one bend in pipes over 15 inches and 2-3 bends in pipes over 23 inches. Detection depth: up to 45cm in non-metal pipes and 15cm in metal pipes. Prevents cable bending and tangling COMPREHENSIVE ACCESSORY KIT FOR EASY SETUP - Comes with a complete kit: transmitter, receiver, 4 probe accessories, USB charging cable, and user manual. Ideal for DIYers, plumbers, and maintenance professionals, making installation quick and easy CLEAR BLOCKAGE DETECTION WITH AUDIO ALERTS - Accurately identify blockage points with real-time signal strength display. The receiver’s audio alert (beeping) helps you quickly locate and resolve pipe issues LONG BATTERY LIFE WITH DUAL CHARGING OPTIONS - Equipped with a 1800mAh rechargeable lithium battery. The transmitter offers up to 10 hours of use, while the receiver lasts up to 4 hours on a full charge. Charges via USB or direct battery charging, with a green low-battery indicator for timely recharging