RailMax, is the only cost-effective, high-performance solution for demanding RFID applications involving onrail identification. The RailMax TRX100 can be installed on either the field or gauge side of the track. It can be placed on any surface, including metal, with no adverse affect on performance. This all-weather, UV resistant solution can work when covered in up to 2 inches of ballast, snow and ice and is specifically designed for fiducial solutions. HF Capable! The unit also has an HF reading option allowing Near Field capable phones to read the tag by authorized individuals. Each unit is 10 years against defects.