Features: Achieve precise measurements up to 50/70/100 meter with technology, delivering result within ±2mm accuracy for construction, and DIY projects. Multifunctional LCD display enables switching between distance/area mode and unit conversions, housed in lightweight ABS casing with lanyard attachment. Essential for engineers, architects, and homeowners requiring reliable calculations in workshops, job sites, or household improvement tasks. Ideal for outdoor surveying, indoor remodeling, and complex measurement scenario with IP54 water resistant protections and shockproof design. Distance meter combines professional durability with user friendly operation, featuring auto calibration and continuous measurement capabilities. Specifications: Material: ABS Continuous Measurement: YES Pythagorean Measurement: YES Add/Substract Measurement: YES Type: 630-670nm＜1mW Auto Off: 150s Battery: 2xAAA Battery Requires (NOT include) Working Temperature: -20 to 60℃ Measurement ranges: 50M/70M/100M Size: about.104x50x25mm/4.09x1.97x0.98in Package Includes: 1pc Rangefinder Tool note: Please allow 1-2cm errors due to manual measurement. Due to difference between different monitors, the picture may not reflect the item actual color. Battery NOT include.