Brunson 2046X Series Optical Scale Extension Measuring Wheel 25 inch (32 mm) outside

25 inch (32 mm) outside diameter

You no longer need to look down while traffic is flying by — simply look through the window

Suitable for all robotic TPS work performed with a survey pole

Equipped with an integrated retro reflective target and designed for multi-angle monitoring

The 8665 Series also incorporates our new "squeeze" lock scale holder clamp

Brunson 2046X Series Optical Scale Extension Measuring Wheel 25 inch (32 mm) outsideFor those critical measurements longer than 20" (500 mm), the optical scale extension adds a 20" artifact to increase your precision measurement length up to 40". The optical scale extension uses a magnetic base to securely mount the invar extension bar and a scale holder from which the precision optical scale extends. Optical scales are sold separately in 5", 10" and 20" and 130 mm, 250 mm and 500 mm lengths.