Feature: 1. HD Backlight Screen: This distance measurement tool features a large HD backlight screen, allowing clear visibility in dark environments. The backlight function can be turned on at any time for enhanced display readability. 2. Automatic Calibration: This level distance meter includes an automatic calibration function that calibrates before each use, ensuring maximum reliability and accuracy while significantly reducing measurement errors. 3. Wide Application: This leveling tool and distance meter is suitable for various applications including building construction, engineering surveying, gardening, urban planning, property inspection, and electrical and plumbing installations. 4. Compact and Portable: This handheld distance measuring device is small and lightweight, making it easy to carry and convenient to use on-site. 5. Sturdy and Durable: Constructed from high-quality ABS and TPU materials, this multifunctional distance measuring ruler is robust, impact-resistant, and built for long-term use. Specification: Item Type: Leveling Tool Distance Meter Material: ABS, TPU Model: NF-271 Range: Approx. 50m / Approx. 164ft Measurement Modes: Single, Continuous, Area, Volume, Pythagoras Measurement Accuracy: ±2mm Battery: 3 x AAA Batteries (Not Included) LCD Screen: Backlit FSNT Wavelength Output: 620-680nm, <1mw Operating Temperature: 0-40°C Storage Temperature: -20-60°C Proof Level: IP54 Package List: 1 x Leveling Tool Distance Meter 1 x Manual