The RL-H5A next generation self-levelling rotating laser from Topcon Positioning System (TPS) is an easy-to-use, long-range high accuracy laser with a long battery life and all-weather dependability. With electronic self-leveling, you press the power button and go right to work in seconds. If the RL-H5A gets disturbed on the job it re-levels itself automatically. The self-leveling motors are accurate to ±10 arc seconds. The RL-H5A has the power and range to cover an 800m diameter job site. The RL-H5A gives you 100 hours of continuous with four D cell batteries. With the IP66 rating, the RL-H5A is ‘job site tough’ and can withstand dust, a sudden shower and even torrential rainfall. Features: Long-range operation (800m) Smart long-range receiver Simple, intuitive manual slope capability ±10 Arc second horizontal accuracy ±5 Degrees self-leveling range Up to 100 hours battery life (Non-rechargeable) 5 Year Warranty Includes: RL-H5A laser LS-80X Receiver Sensor holder Batteries (Alkaline non-rechargeable) Carry case