Features: Compact size, exquisite appearance, convenient to carry. User-friendly slippery-resistant texture design. High quality plastic housing is strong and durable. Designed with bubble level, making measurement more accurate. Multi-function back clip design is great for carry, can prolong benchmark. LCD backlight screen, 4 rows data display, reading is more clear and bright. IP54 dust proof and splashing proof level. Single time measuring 0.3S, continuously measure 7 times in 1S. Specifications: Model(Optional) C40 C60 C100 Measuring Range 0.05-40m 0.05-60m 0.05-100m Measuring Accuracy 3mm Laser Class Class 2M II Laser Type 620-690mm, <1mw Area/Volume Support Add/Minus Support Tracking Measurement Support Maximum & Minimum Measurement Support Continous Distance Measurement Support Pythagorean Theorem Support Storage Function Support IP Rating IP54 Operating Temperature 0℃~+40℃ Storage Temperature -20℃~+70℃ Battery Type AA LR6 2*1.5V (NOT included) Laser Auto Power-off 30 sec. Device Auto Power-off 3 min. Size 12.5*4cm/4.9*1.6in Weight 165g (approx.) Package Includes: 1 x Rangefinder (batteries are NOT included) 1、Compact size, exquisite appearance, convenient to carry. 2、User-friendly slippery-resistant texture design. 3、High quality plastic housing is strong and durable. 4、Designed with bubble level, making measurement more accurate. 5、Multi-function back clip design is great for carry, can prolong benchmark.