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° Its inclination sensor can provide instant simultaneous horizontal vertical and diagonal distance measurements Functions Distance Volume and area calculation Addition and subtraction Continuous measurement Stake out Self-triggering timer Indirect measurements Angle measurements Bluetooth® connection Transferoverlay data to sketches and RIDGIDSketch App for iOS® and Android® Specification Accuracy ±15mm Operating Range 70m Power 2 x AAA batteries supplied Protection Class IP54 dust & water splash