3-In-1 measuring tape for accurate measurement and precise testing. Self-locking device for easy positioning and automatic retraction. Includes a smart distance meter, 5-meter tape measure, and electronic marking tool. Built-in storage function for up to 20 sets of data, easy to recall and view. Easy to use with the ability to measure area, volume, and Pythagorean calculations. High elasticity and anti-slip design. Description: Introducing our 3-in-1 measuring tape, the ultimate tool for accurate measurements and precise testing. This versatile device is perfect for a wide range of applications, from measuring foundation levelness to installing construction equipment. With its self-locking device, this smart tape measure automatically locks the position after pulling out the steel ruler, ensuring stability and ease of use. Simply press the unlock button to retract it effortlessly. Our 3-in-1 measuring tape includes a smart distance meter, a 5-meter tape measure, and an electronic marking tool. With just a push of a button, you can easily measure high ceilings and other hard-to-reach areas. No more worries about losing recorded measurements or data Our smart tape measure comes with built-in storage that can store up to 20 sets of data. You can recall and view the stored measurements at any time, making it convenient and efficient. Not only is this product easy to use, but it also offers multiple functions. It can measure area, volume, and even perform Pythagorean calculations, both single and continuous. Its high elasticity and toughness make it durable and resistant to slips and drops. Upgrade your measuring tools with our measuring tape. Item Name: Measuring Tape Material: Steel, TPR Features: Digital Display, Portable, Accurate Tape Measure Parameters: Range: 0-5m Minimum Scale: 1mm Width of Ruler Tape: 19mm Unit: Imperial System Battery Type: 2 x AAA Batteries (not Included) Electronic Measurement Parameters: Range: 0.2-40m Accuracy: ±2mm Measurement Unit: M/in/ft Automatic Shutdown Time: 180 Seconds Data Storage: 20 Groups Functions: Continuous Measurement, Area Measurement, Volume Measurement, Pythagorean Theorem Measurement, Electric Quantity Display, Measurement Benchmark Switching Size Details: Size: 8.5cm x 8.2cm x 5.6cm/3.35" x 3.23" x 2.2" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Measuring Tape