Compare Fully waterproof handheld metal detector underwater 3-5 meters working pinpointer Green daerduo Price

Before purchasing.hope you can read carefully. Maybe you care machine sensitivity or detection distance.daerduo has different sensitivity.Detection distance is difference for ferrous and non-ferrous metal. Detection distance:Dia 2.5cm(RMB One Yuan Coin,Coin belongs to ferrous metal):detection distance is about 4cm Besides,Maybe you also care for pointer waterproof function.daerduo is IP68 waterproof level.you can use underwater 3-5 meters.but make sure battery cover is sealed before use underwater. Specifications: Operating frequency:12kHz Control:Power switch Length:23.2cm Thickness:4cm Weight:0.175kg,with battery in Battery:Single 9V (not included) Package size:24.2*6*6cm