The CST Theodolite Diagonal Eyepiece the perfect accessory for obstructed linesbetween the unit and the target. While using the CST/berger DGT10, CST/berger BDT30, David White DWT-10(46-8890), and David White DWT-30(46-8895) theodolites, this little tool allows you to take accurate measurements even when large obstacles (like buildings) are in the way.
The theodolite eyepiece is small (3.75" long) and lightweight. It's easy to carry and transport with the soft case's belt and wrist loops.
The solar filter serves to prevent the glare of the sun when it's very bright outside, or when the sun is needed as a reference point during measuring.
Made from sturdy, rugged materials, this eyepiece is designed to last on the conventional jobsite.