Feature:1. Multifunctional: This infrared ruler has several measurement functions: distance, area, volume, pythagorean, plus or minus, maximum and minimum, and automatic calibration.2. Widely Used: This distance meter is widely used in interior decoration, interior design, construction, house renovation, factories, warehouses, etc.3. Data Storage: This measuring instrument also supports data storage function. You can keep the previous data, which is more convenient for your work.4. Portable and Easy to Carry: Small in size and light in mass. This distance meter is very easy to carry, you can even put it directly in your jacket pocket.5. Easy to Use: With one key measurement function, our distance meter is simple to operate and easy to use. Equipped with HD display, the data is more convenient to read.Specification:Item Type: Distance MeterMaterial: ABSWeight: Approx. 132g/4.66ozSize: 10.5x4.3x2.5cm/4.13x1.69x0.98in Battery (shipped without battery): 2xAAAMeasuring Distance: 40mFeatures: Continuous measurement, area, volume, Pythagorean method, plus or minus, maximum and minimum, automatic calibration functionLaser Grade: Level 2Laser Type: 2 level 635nm, <1mWStorage Record Number: 30Automatic Laser Cut Off: 20 secondsAutomatic Shutdown: 150 secondsFull Charge Working Time: 8000 timesStorage Temperature Range: -20℃-60℃Operating Temperature Range: 0℃-40℃Storage Humidity Range: 20%-80%RHBattery Charging: Non rechargeableAngle Measurement: Physical level bubbleUse Scenes: Widely used in interior decoration, interior design, building construction, road planning, warehouse logistics, housing acceptance, etc..Package List:1 x Distance Meter 1 x English and Chinese Instruction