A stainless steel digital angle finder with LCD display and incorporated ruler that calculates angles quickly and efficiently. Ideal for carpentry, construction, machining, etc. The ruler is etched with both metric and imperial graduations. The metric side has cm and mm graduations and the imperial side has inch and up to 1/32 graduations. Each side has markings up to 480mm (18.5") and when opened out it measures 1 metre (39") from end to end, you won't find a longer digital angle finder/ruler on here. Once opened out it can be locked in place using the locking knob on top, making it easier to mark your angles and measurements. Comes with a convenient hanging hole for neat storage when not in use. RoHS compliant and is also CE approved. Battery operated and requires a single CR2032 3V battery.