The Spectra LL100N is a fully-automatic, self-leveling laser that can be used indoors or outdoors with the included HR320 laser receiver. With a working range of up to 1,150 feet, this rotary laser has a removable rotor cage for precise 360-degree coverage over the entire work area, allowing one person to take accurate and self-leveled elevation measurements. A tripod and grade rod (metric) are also included in this package. A leveling crew in a case for the small contractor The Spectra Precision® LL100N Laser Level is a complete one man leveling crew in a case. A complete system is contained in a single hard-shelled, portable carrying case - the laser, receiver, clamp, tripod, and grade rod - for easy transportation, storage, and use. A standard case with laser and receiver only is also available. Automatic, self-leveling ensures fast, accurate setups. Easy, one-button operation requires minimal training. The LL100N Laser Level is capable of handling a wide variety of elevation control applications. Versatility is added with single-axis manual slope capability for setting out driveways, ramps, and residential drainage lines. It is rugged enough for the toughest jobsite and designed to survive a 3 foot (1 m) drop onto concrete. The LL100 Laser Level is backed by a 2-year instant over the counter exchange warranty.