cross laser line and Pythagorean measurement. Very convenient for construction or home use. Features: 3-in-1 Measurement Tool: The tape measurement combines laser measurement 40m / 131ft or 60m / 196ft, 5m / 16.4ft tape measurement and multi measuring and calculating modes. Multifunctional Modes: Digital laser tape measure for beeline measurement, area measurement, volume measurement, Pythagorean measurement, double Pythagorean measurement and cross laser line to meet your all needs. 3 Measuring Units: It provides 3 different measuring selections (M / In / Ft) for you. Laser measurement accuracy: 1.5mm±1%. Features: Distinct LCD digital display, durable silicon case, continuous measurement and max / min distance tracking. It has auto-locking design to prevent the blade from rebounding and auto-off function to save energy. Occasions: Fit for construction, house repairing, woodworking, etc. Specifications: Item Name: Laser Tape Measure Color: Black and Blue Type: 40m / 60m (optional) Material: Silicon & Steel Measuring Units: Meter / Inch / Foot Measuring Accuracy: 1.5mm±1% Measuring Mode: Beeline Measurement, Area and Volume Calculation, Indirect measurement using Pythagoras, using Pythagoras Addition/Subtraction. Battery: 2 * AAA Batteries (Not Included) Voltage: 3V Laser Distance: 40m: 0.2-40m / 0.65-131ft 60m: 0.2-60m / 0.65-196ft Tape Range: 0-5m / 0-16.4ft Dimension: 85mm * 82mm * 56mm / 3.3 * 3.2 * 2.2in Weight: Approx. 500g / 1.1lb Note: 1. This size information is just for reference only, please allow 1-2cm (0.4-0.8") differences due to manual measurement, thanks. 2. Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same. Package List: 1 * Laser Measure Tape