You can take this slim, compact 100 ft. Laser Distance Measurer to almost any jobsite with you as it comfortably fits in your pocket. No-hassle measuring is made possible by the tool"s 2-button operation, which allows the user to quickly change between measurement units (feet, inches, and meters). For readability indoors and outdoors, the backlit LCD screen remains consistently bright and was designed to help you read measurements in direct sunlight. Add, subtract, or calculate area and volume measurements with this multi-use Laser Distance Measurer as you tackle a range of construction planning and layout jobs. 2 AAA batteries included.