In addition, the large ergonomic keypad and the backlit LCD display allows the Surveyor to be extremely productive in the field works. Also the reticle is illuminated permitting to work inside tunnels and buildings. By pressing one key STT402L converts vertical angles to percent of grade, locks the horizontal angle, resets the horizontal angle to zero offering the possibility to reposition or repeat a measurement. The continuously reading program with average calculations gives a 100% error free reading on both the circles. Stonex STT402L comes with a complete set of accessories including the carrying case, battery and charger, adjusting tools.
