Specification Product Name: Laser Corner Caster LI1Product Size: 120x20x35mmLaser wavelength: 660nm Laser Class: Class III indoor distance: 10m Horizontal Accuracy: 1mm/5m vertical accuracy: 1mm/5mOperating temperature: -10C-50C storage temperature: 20C-55C Battery Specification: 730mAh rechargeable lithium battery Working mode: absolute angle and relative angle Feature1. High brightness LED, clearly visible over long distances2. Anti-fall metal material, durable3. Accurate measurement, easy to use, convenient for work and life4. Large battery capacity, long battery life Note: 1. Please allow 2-3mm differences due to manual measurement. Package includes 1 x 1 laser and bracket (without other things) OR 1 x 2 laser and bracket (without other things). /p> 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.