Empire Digital Torpedo Level

Empire Level expands its digital level offering to include a digital torpedo level. The
new em105.9 Auto-Calibrated Torpedo Level provides users a clear and precise
digital readout immediately, making it ready to measure, replicate, and inspect any
angle accurately when powered on. The best-in-class magnet strength ensures the
torpedo will still be in place during use, and the oversized display makes it easy to
read. With 6 measuring display modes, the digital torpedo can do the tasks of the
standard torpedo, slope level, and angle finder, making it more than a level. For
even further versatility, inspect mode allows users to zero out the torpedo, which is
ideal for conduit bending applications.

[LL-tkgn]

What do those triangle indicate the one that changed to up an down