General description The DeWALT DWHT77100-XJ Laser Line Distance Measurer is a versatile tool designed for both professional and DIY use. It calculates distances in both metric and imperial units, making it suitable for various applications. The device features a compact and lightweight design for easy storage and transportation, and it is fitted with a TPE overmould for a secure grip and slip protection. Additionally, it includes a lanyard loop hole to prevent accidental drops. Technical specifications Power Source: 2x AAA (Included) Working Range: 30m Levelling Accuracy: +/- 3mm @ 10m Usage Calculates distance in Metric and Imperial Can be used for Area, Volume, and Pythagoras calculations One-button operation for hold measurements and continuous measuring