The SNDWAY SW-B40/B50/B60 Laser Distance Meter is a digital measuring tool ideal for construction, real estate, and interior design. With fast, accurate results and a portable design, it's perfect for measuring distances in large rooms, buildings, or apartments. Its Type-C rechargeable battery makes it eco-friendly and cost-effective for long-term use. A great choice for professionals and DIY users alike. Main Features Rechargeable Laser Rangefinder with high accuracy up to ±2mm Measures distance, area, and volume, with Pythagorean mode for indirect measurements Compact and lightweight aluminium alloy body for easy handling LCD display with clear segmented screen for quick reading Long-lasting 850mAh lithium battery with up to 8,000 uses per full charge Specifications / Model Details Model Numbers: SW-B40 / SW-B50 / SW-B60 Measuring Range: 40M / 50M / 60M Accuracy: ±2mm Laser Type: 630–670nm, Display: Segmented LCD Minimum Unit: 0.001m Battery: 3.7V 850mAh lithium (Rechargeable via USB Type-C, 500+ cycles) Charging Input: DC 5V ≥500mA Usage Per Full Charge: Up to 8,000 measurements Auto Power Off: Laser (20s), Device (150s) Temperature Range: -20°C to 60°C (storage), 0°C to 40°C (operation) Humidity Tolerance: 20%–80% RH Material: Aluminium Alloy Product Size: 100.3 × 33.4 × 18.3 mm