1Mini laser rangefinder adopts double photosensitive apertures, its stability is significantly improved. 2Using 2M II laser type, the measuring range is 0.0540m, high accuracy and small error. 3Provide quick, easy and accurate measurement, suitable for interior decoration, floor and wall coverings, etc. 4With a twocolor mold encapsulated shell, it feels comfortable and resistant to drops. 5Handheld laser rangefinder, small size, light weight, IP54 waterproof rating, easy to use. Item Type: Distance Meter Material: Plastic Product Model: S40 Measuring Range: 0.05-40m Measurement Accuracy: ±2mm Laser Class: 2M II Laser Type: 620-690nm, <1mW Area Measuremen: Support Volume Measurement: Support Pythagorean Theorem Measurement: Support Addition And Subtraction: Support Tracking Measurement: Support Maximum And Minimum: Support Backlight: Support Prompt Tones (Can be turned off): Support Data Deletion: Support Data Storage: 20 Groups Dustproof and Splashproof: IP54 Operating Temperature Range: 0-40 Storage Temperature Range: -20-65 Battery Life: >5000 Times Power Supply: 2 x AAA LR6 1.5V (Battery Not Included) Automatic Laser Shutdown: 30s Automatic Power Off: 3min Product Size: Approx. 117x52x27mm / 4.6x2.0x1.1in