1、The instrument has double photosensitive apertures, and its stability is significantly improved. 2、The use of high‑quality plastic materials, durable, two‑color mold encapsulated plastic shell, feel better. 3、The rangefinder kit provides quick, easy and accurate measurement, and one person can complete the work in a few seconds. 4、Very suitable for interior decoration, decoration, floor and wall materials, real estates appraisal. 5、The power is automatically turned off if there is no operation for 3 minutes, saving power. Item Type: Laser Distance Meter Material: Plastic Color: As shown in the picture Product Size: Approx. 117x52x27mm / 4.61x2.05x1.06in Product Model: S80 Measuring Range: 0.05~80m Measurement Accuracy: ±2mm Laser Class: 2M II Laser Type: 620-690nm, <1mW Area: YES Volume Measurement: yes Measurement of Pythagorean Theorem: Yes Addition and Subtraction: Yes Tracking Measurement: Yes Maximum and Minimum: YES Backlight: Yes Prompt Tones (can be turned off): Yes Data Deletion: yes Data Storage: 20 groups Dust and Water Splashing: IP54 Operating Temperature Range: 0~40℃ Storage Temperature Range: -20~65℃ Battery Life: >5000 times Power Supply: 2 x AAA LR6 1.5V (not included) Automatic Laser Shutdown: 30s Automatic Power Off: 3min Prohibit: 1. It is forbidden to open or repair the equipment. 2. Measure in the sun. 3. Others are beyond the specified range. 4. Immerse the equipment in water. 5. Use ethanol or any other organic solvent to clean the lens. 6. Wipe the lens directly with fingers or other rough surfaces. 7. The power supply to the equipment exceeds the rated DC voltage. 1 x Laser Distance Meter(Battery Not Included) 1 x Lanyard 1 x Instruction Manual