Features 1、Premium Material: Selection of high quality ABS material production, anti corrosion and seismic, high quality, durable. 2、Waterproof Function: Waterproof grade up to IP68, far more than similar products of waterproof ability can be detected in water at will. 3、Easy for Installation: Single wire connection is easy to install, without tedious wiring process, that is, convenient and quick to install. 4、Superior Performance: Highly sensitive, available in a variety of sizes, rugged, perfect for underground metal detectors, providing higher performance. 5、High Applicability: This is a search coil, is the perfect accessory. Compatible for T850 metal detector, practical and professional. Specification Item Type: Search Coil Material: ABS Model: T850 Accessories Purpose: Metal Detection Accessories Applicable : for T850 Metal Detector Waterproof Grade: IP68 Coil Characteristics: High Sensitivity Working Principle: VLF Induction Balance Package List 1 x Search Coil