The Topcon LS-80L Laser Receiver is a functional laser sensor that allows an increased measurement range of up to 2,620 feet when used with the Topcon RL-H4C and RL-H5A lasers. It offers two on-grade precision settings—High (±0.04-inch) and Normal (±0.08-inch)—to ensure accuracy at all times. It has a beam detection width of up to two inches and a nine-channel grade indication with high/low out of range alert. This laser receiver provides easy readability with its dual LCD displays. The Topcon LS-80L Laser Receiver is powered by two AA batteries that enable it to operate continuously for up to 120 hours.