Insize 2175-360, DIGITAL LEVEL AND PROTRACTOR, 0~360? (90?x4), IP67, 6928640384875

Resolution 0.05? (=0.873mm/m)
IP67 dust/waterproof.
Aluminum frame, shock absorbing rubber end caps.
Magnetic bottom with V-groove for shafts.
The sea level is permanently set inside the chip, zero setting is not needed when batteries are replaced.
Buttons: ON/OFF, backlight/buzzer alarm, absolute and incremental measurement, unit (mm/m, %, ?), HOLD (keep the reading).
Three AAA batteries.