Feature:1. Easy Measuring: Supports various measurement methods, including single measurement, area measurement, volume measurement, etc.2. Accurate Works: Also has vertical and horizontal bubble levels as well as digital display function for high measuring accuracy.3. Extensive Uses: Easy adjustment makes the laser measure ideal for interior home improvement, construction, furniture and so on.4. Work Reminders: Select the front reference, the measurement distance does not include the body length. Select the rear reference, and the measurement distance includes the body length. Can store 20 sets of historical data.5. Great Material: Using integrated industrial grade ABS material, waterproof and dustproof, very sturdy with falling and shock.Specification:Item Type: Laser MeasureProduct Material: ABSSide Cover Material: PVCItem Model Number: HD40Measuring Range: Approx. 40m / 131.23ftOperating Temperature Range: 0-40Accuracy: 2mmBattery Type: 2 x 1.5V AAA batteries (shipped with matching batteries)Battery Capacity: 70mAhApplication: For interior home improvement, construction, furniture. .Package List:1 x Laser Measure2 x Battery1 x Lanyard1 x User Manual