Features:* Multifunctional smart tape measure: laser ranging/laser cross/self-locking tape measure* Five tips per hand: 5m tape measure/40m laser rangefinder/laser cross.* Measuring method: measure short distance with tape measure, measure long distance with laser, measure cross with laser cross.* Precise laser components: laser ranging, error 2mm, digital display can be accurate to 0.001m, subtle distance changes and accurate perception.* Plastic protective soft shell: with high elasticity, toughness and slip resistance.* Automatic locking of the ruler belt: The ruler belt will be automatically locked after being pulled out to prevent accidental finger injury, and it will automatically spring back when the unlock button is pressed.* 20 sets of data storage, important data is not lost, easy to read.* Regarding the positive and negative correction of the ruler hook: the ruler hook is designed for subtraction compensation, and it is not a quality problem, please use it with confidence. Specification:Name: 3 IN 1 Laser RangefinderMaterial: ABS + manganese steel wire beltRange: 0.2-40mMeasurement accuracy: 2mmMeasurement unit: m/in/ftLaser type: 635nm1mWAuto-off laser time: 30 secondsAutomatic shutdown time: 180 secondsData storage: 20 groupsLaser range: 40mTape measuring range: 0-5mMinimum scale of tape measure: 1mmMeasuring tape width: 19mmTape measure unit: metric inchTape measure tape material: 65 manganese steelBattery Type: 2*1.5V AAA batteriesScope of application: single measurement, continuous measurement, area measurement, volume measurement, hook measurement, decoration design, furniture placement, door and window measurement, engineering supportWorking temperature: 0-40 degrees CelsiusSize: 85*82*56mmColor: yellow Packing included:1 x 3 IN 1 Laser Rangefinder1 x Chinese and English manual