It may not look or feel like anything youve previously tried but the Multi Scanner i 700s unique floating head will help you find studs faster easier & more accurately than ever before Zircons Multi Scanner i 700 One Step wall scanner is the worlds most sophisticated yet simple scanning tool It quickly & accurately locates studs joists metal & hot electrical wire Zirconexclusive Center Vision technology finds the centre of studs with just one pass & an ultrabright LCD screen indicates direction edge & centre of studs An innovative floating head provides smooth contact for accuracy on uneven surfaces A builtin erasable marker makes mapping targets onetouch easy Stud Scan mode finds metal or wood studs & joists up to 38 mm deep Metal Scan mode detects ferrous metal such as rebar or steel pipe up to 76 mm deep & nonferrous metal such as copper pipe up to 38 mm deep AC Scan mode finds & traces live electrical wire not shielded by metal Spot Lite Pointing System & audio alert automatically identify the target In stud or metal modes Wire Warning Alert detects the presence of unshielded hot electrical wiring ACT Auto Correcting Technology checks calibration 10 times per second & recalibrates automatically to ensure accuracy A signal strength indicator helps determine the targets depth