• Electronic spirit level with two digital displays for instant measurement of inclines, slopes and angles. • ULTRA-PROTECT: Optimum protection against dust and water in accordance with IP 67 – the spirit level can be temporarily submerged. • Optimal read-out: Two digital displays, illuminated at the press of a button. • Acoustic guidance: For quick alignment of elements without looking at the spirit level – with two different audible signals. • CAL-FREE: In daily use, it is not necessary to calibrate the electronics – even after falling or being exposed to temperature fluctuations. • The digital display rotates to the reverse position. • REF-MODE: Take, save and transfer an angle measurement to other elements. • KEY-LOCK: Keyboard lock to prevent accidental input. • Display modes: °, %, mm/m, in/ft – decimal and as a fraction. • ROOF-PITCH mode (in/ft) to quickly determine the roof pitch. • Long operating time: Up to 400 hours. • Includes bag for safe transport.