• Locate and follow the path of 3M EMS Caution Tape
• Six active trace frequencies which can be used individually or simultaneously to providing a solution for virtually all challenging applications encountered in the field. The receiver incorporates passive power and auxiliary frequencies that do not require the use of the transmitter.
• Trace view mapping interface that provides an intuitive mapping display showing the utility path combined with a precision peak antenna based antenna array to provide the utmost confidence in utility location.
• Five modes of operation – trace view, directional peak, directional null, special peak and induction peak – for accurate locates, even in congested areas.
• Directional mode utilizes all-peak antenna design for improved left/right guidance and accurate locates in challenging conditions.
• Locate, write and read information into the 3M™ iD Electronic Marker System.
• Compatibility with select GPS/GIS field mapping instruments for real time mapping of electronic markers or pipe and cable facilities

3M™ Dynatel™ Marker Tape Locators 7420 are high performance locators that quickly and efficiently locate 3M™ EMS Caution Tape and existing electronic markers. In addition, the locators have the capability to read/write to 3M™ ID Markers.