SpecificationProduct Name: LI1 laser angle casterProduct Size: 120x20x35mmLaser Wavelength: 660nmLaser Class: Class IIIndoor Distance: 10mHorizontal Accuracy: 1mm or 5mVertical Accuracy: 1mm or 5mWorking Temperature: -10C-50CStorage Temperature: 20C-55CBattery Specification: 730mAh rechargeable lithium batteryWorking Mode: absolute angle and relative angleFeature1. High-brightness LED, can be seen clearly at long distances2. Anti-drop metal material, durable3. Accurate measurement, easy to use, convenient for work and life4. Large battery capacity, long battery lifeNote:1.Please allow 2-3mm differences due to manual measurement.Package Include1 x 1 Laser and Holder (Not including other things)OR1 x 2 Laser and Holder (Not including other things) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.