Trimble DiNi LD12/b 2 m Invar Barcode Rod with Wide Base Support high-precision digital leveling with the LD12/b 2 m (6.56 ft) Invar rod , designed for use with Trimble DiNi digital levels. Its low-expansion Invar construction, DiNi barcode graduation, and wide staff base make it well suited for precise elevation determination, control networks, monitoring, and other demanding leveling applications. Key Features 2 m (6.56 ft) Invar rod designed for precision digital leveling applications. DiNi barcode graduation supports automatic electronic readings with compatible digital levels. Invar construction provides dimensional stability for demanding precision measurement work. Wide staff base provides a stable reference surface for precision leveling applications. Compatible With Trimble DiNi Digital Levels