The Spectra Precision DG613 Pipe Laser is built for efficiency, accuracy, and reliability when laying pipes. It works over a distance of 500 feet (150 m) providing full operation in a single setup between manholes. The RC803 Remote Control provides full function control and utilizes infra-red light in the pipe. For over-the-top setups, the remote utilizes radio communications. Flexible power options provide 40 hours operating time with NiMH rechargeable batteries and 50 hours with alkaline batteries. Alkaline batteries can be used directly in the laser without a separate battery pack. An optional car charger is available for work in remote areas. Large graphical user interface can be seen easily when the laser is in a manhole. All functions are available via graphical menu, which makes it simple and easy to use – no secret button pressing and short learning curve means it can be handed to anyone in your crew with little or no training. The same graphical user interface is used at the RC803 remote control.