Using the DeWalt DW03601CG is straightforward. First, make sure the batteries are properly installed. You can use the integrated magnetic bracket to mount it on metal surfaces or the 1/4' 20 thread mount for a tripod. Once mounted, turn it on using the touch - pad control panel. Select the desired mode with the 3 - position lock switch. The 100 - degree vertical line and 360 - degree horizontal line will help you with a variety of tasks. When not in use, store it in the blow - molded carrying case to protect it. Remember to handle it gently to avoid damaging the locking pendulum. Keep the housing clean and dry. If you encounter any issues, refer to the quick - start guide or contact DeWalt customer service for the warranty benefits like the 3 - year limited warranty, 1 - year free service contract, or 90 - day money - back guarantee.