3M Electronic Marking System (EMS) Caution Tape 7902, Red, 6 in, Power, 500 ft

Key points

• They can be installed near or above buried assets
• They are easy to follow, creating a detectable path above ground
• For use in open trench applications
• They do not require batteries and there is no need to hook up an external transmitter or spend time searching for access points
• The markers work independently, so even if a section of path marking tape is cut or removed, the other markers on the tape will continue to provide an accurate location
• They come in 5 frequencies, creating a unique identification for each utility type