Robust and precise rotary laser and receiver with a working range of up to 650m. Ideal for rough jobsite conditions and bad weather, withstanding up to 2m tripod tip-over and an IP68 rating for dust and water protection. Green beam technology delivers high visibility in different lighting conditions. Features bluetooth connectivity for fast job completion when used with the Levelling Remote App, enabling settings overview and remote control use. 1 x 4.0Ah Li-Ion Battery 650m Working Range With Receiver Accurate to ± 0.05mm/m X & Y Dual Grade Slope Facility Vertical & Horizontal Rotation IP68 For Indoor & Outdoor Use ABS Plastic 1 x 4.0Ah Li-Ion Battery 650m Working Range With Receiver Accurate to ± 0.05mm/m X & Y Dual Grade Slope Facility Vertical & Horizontal Rotation IP68 For Indoor & Outdoor Use ABS Plastic