Fully automatic, horizontal laser with weatherproof design. Vertical manual levelling via easy to operate adjustment buttons. Supplied with heavy duty carry case. Specifications: Laser class: 3R, 5mW. Accuracy: 0.2mm/m. Self-levelling range: ±5°. Indoor visibility: 15m. Rotation speed: 0-600rpm. Power source: 2 x D batteries. Tripod connection: 5/8".