Precision digital protractor inclinometer level box

Specification Specification: Measuring range: 4*90° Resolution: 0.1° Operating temperature: 0℃~40℃ Relative humidity: 40%~80% Datum point: horizontal Battery: 1*AAA battery (included) Quantity: 1pcs Package list: 1*digital angle finder Features: ** Data hold function: This angle gauge has a HOLD button to freeze the display, this is convenient for you to read. ** High quality: The digital angle gauge is made of sturdy aluminum alloy, which has long service life and is rust proof and wear resistant. ** Magnetic base: The bottom has built-in magnets for attaching on metallic surfaces firmly. ** Auto-off: The angle finder will turn off after 1 minute of no operation ** Backlight display: The large screen with backlight and big digits, you could read the data easily even in the dark room. ** Units conversion: Simply press " UNIT" to conver the units, in/ft, mm/m, 0 and 0% are switchable. ** Inverting display: With automatically inverting display flips, making readings easy and acc