1、[High Accuracy] Laser rangefinder provides higher accuracy and faster angle measurement, easier to find horizontal direction, self calibration, more accurate measurement results. 2、[Fast Measurement] The laser rangefinder's high accuracy laser head assembly provides fast and accurate measurements in 0.5 seconds. 3、[Automatic Calculation] The laser rangefinder measures only 2 beveled edges, the vertical height is automatically calculated, and the area and volume are automatically calculated in one click. 4、[Powerful] The laser rangefinder has 30 data records and callback functions and automatically shuts down after 150 seconds of no operation to save power. 5、[Wide Application] The laser rangefinder is suitable for large areas such as apartments, buildings, factories, warehouses, construction and industrial sectors. Item Type: Laser Distance Meter Material: ABS Distance Measuring Accuracy: ±2mm Measurement Unit: m, in, ft Continuous Measurement Function: Yes Area Volume Measurement: Yes Pythagoras Measurement Function: Yes Add and Subtract Measurement Function: Yes Area Volume Addition and Subtraction: Yes Peak Size: Yes Self Calibration Function: Yes Laser Class: II Laser Type: Level 2 630-670nm,< 1mW Number of Records Stored: 30 Automatic Laser Cut Out: 20 seconds Automatic Shutdown: 150 seconds Sound Prompt: Yes Storage Temperature Range: -20℃-60℃ Operating Temperature Range: 0℃-40℃ Storage Humidity: 20%-80%RH Power Supply Battery: 2 x AAA alkaline dry cell batteries (shipped without batteries) 1 x Laser Distance Meter 1 x Storage Bag 1 x Lanyard 1 x Accessory 1 x Instruction