Measuring tape length: 250 cm. Horizontal accuracy: 0.25 mm/m Vertical accuracy: 0.5 mm/m Light wavelength: 630nm-680nm Power output: 5 mW Light range: 20 m Light range indoors during the day: 6-8 m Function: 3-sided horizontal bubble level (horizontal/vertical/45), ruler measurement function, tape measure function. Supply quantity 1 piece < p>Tripod: 1 pcs Clips: . 1 Battery: 10 capsules.