The Topcon Target 56929 works with the Topcon TP-L4G and TP-L4GV green beam pipe lasers. This allows you to easily align the laser beam. The pipe lasers use the target by scanning to find the target's left edge and right edge. With this information, the pipe lasers are able to efficiently center its laser beam on its own.
Please Note: Stand not included. This is the replacement plate.