[INSTANT AND PRECISE MEASUREMENT] Built-in sensitive optical sensor, laser distance measurement takes fast and reliable measurements up to 7 readings / second with bubble level, providing more accurate measurement, accuracy to within 2mm; Allows users to measure in meters, feet and inches. [MULTIPLE MEASUREMENTS The digital tape measure makes it easy to measure distance, area, volume and height (Pythagoras), as well as function addition / subtraction and continuous measurement to greatly improve measuring work. [MULTI-FUNCTION] The laser measuring tool has a backlit LCD display to make the display clear in low light case; The upper and lower zero reference for interior and exterior measurements; Memory of 10 data groups; Mute setting; Manual deletion of data; Automatic shutdown without operation 3mins. [DURABLE AND CONVENIENT IP54 waterproof and dustproof function and soft rubber body provide good protection; The laser range finder is lightweight and portable for easy carrying. Independently develop the high frequency phase system, the unique reception speed of a single shot is fast: light receiving optical lens, filtering stray light, improved reception, fast speed measurement. Reading is clear, and the effect is even better in low light indoor environment, it is easy to fit in the pocket. Features: 1. Maintenance lens: Adopt professional grade photoelectric lens to improve reflected light reflection, filter stray light and measure stability. 2. Punctuation Algorithm: FFT smart digital punctuation algorithm to stabilize the system, making the measurement stable and stable 3. Quiet settings: suitable for quiet places such as conference rooms and libraries 4. IP54 protection rating: dust and waterproof splash, general construction site can also be used. Specifications: Range: 40m. Precision: ± 1.5mm. Units: M / Ft / In. Display: Large backlit LCD display Automatic calculation, addition / deletion Size: 120x 50 × 30mm / 4.7x2x1.2inchLaser ClassⅡ, output power 1mW Note: this does not include other things, the color is based on the first picture and other pictures only show as the effect Due to the differences between different monitors, the picture may not reflect the actual color of the item. Due to manual measurement. Please allow deviation. Thank you