The ridgid micro lm 400 advanced laser distance measure features bluetooth technology allowing it to be connected to smartphones and tablets to easily view store and share data this helps to avoid time consuming paperwork and costly writing errors android and ios apps easily and quickly transfer and overlay measurements from the micro lm 400 onto a photo or sketch the lm 400 has an easy to read backlit 4 line display it has a long measuring range of up to 7m and can measure angles of up to 65