sensor77Page 1 77-255 IntelliSensor ™ Multi-depth Stud Finder INSTRUCTION MANUAL 109F Manual (BEF) 17205, 3:38 PM...; Page 2 IntelliSensor™ Pro (77-255) The Stanley® IntelliSensorMetal Sensor - 77-445 Advanced metal selector can set to detect rebar, iron pipe or copper pipe Metal depth can be determined to a depth of 75mm (+–7mm accuracy) LCD displays Senses