SAAV's narrow diameter, rugged joint design, and generous bend radius means ShapeArray™ can be installed where traditional inclinometers cannot. SAAV can zigzag into both new and existing casings, even those that are too distorted for conventional use, which saves time and money by eliminating the need to drill new boreholes when converting from manual to automated monitoring. A spring box at the top holds the joints firmly in contact with the casing, without any grout in the casing.