Bosch GMS120 Multi Material Cable Detector Features The most reliable multidetector in its class Maximum reliability all objects are found and application errors are avoided due to the automatic calibration Reliable detection even of deeplying objects up to a depth of 12 cm Even more reliable detection of objects due to threecolour LED luminous ring Pinpoint indication of the object&39s centre with the Center Finder scale Better visibility of the result due to illuminated display Marking hole with LED luminous ring p Specification Detectable materials Electrical cables metals wooden substructures Max detection depth 120 mm Detection depth steel max 120 mm Detection depth copper max 80 mm Automatic deactivation facility approx 5 min Display backlight Yes Acoustic signal Yes Dimensions 200 × 85 × 32 mm Power supply 1 x 9V 6LR61 Net Weight 027kg p Includes Protective bag Hand strap 1 x 9 V 6LR61 Block p