*A tripod is typhically used with levelling instrument, grade rod, laser pole and level detector. *Tripods are portable and provide support and stability along both the side-to-side up and down axis of motion. *Easier to set up on uneven ground because each leg can be adjustable to exactly the height needed to final level, even on a very steep stone. *Adjustable-leg tripod is also easy to transport due to having retractable legs. *A laser level is acontrol tool used in surveying and construction. *A laser beam projector can be fixed to a tripod wich is then leveled according to the accuracy of the device. *The device will project a fixed green beam along the horizontal or vertical axis