Bosch GMS 100 M - 100 mm Professional Metal Detector is a calibration-free tool for maximum reliability. It has an automatic zoom scale for more precise detection. Few of the detectable materials include ferrous metals, non-ferrous metals, live cables, etc. There is a multidetector and special detector that can be used to detect the plastic pipes reliably. Even the depth of the object is displayed, and the device prevents errors. The sensor is placed around the marking hole for accurate marking of the object. There is a LED-ring for safety alert of the nearby objects. Bosch GMS 100 M has a sturdy and durable design for building the sites. There is a large display for easy reading. The Bosch Professional Metal Detector is a dust and splash protection option for this device. Also, it has an automatic deactivation facility of approx — 5 min.