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Your cart is empty.The Spectra Precision LL300 Laser and HL450 Laserometer are now combined to offer unmatched performance and price. The HL450 features a digital readout of elevation that provides a numeric display of ±1.5 inches (±38 mm). The readout is displayed on the large front and rear LCD’s and shows exactly how far the elevation is from on-grade. Accurate measurements can be made without moving the rod clamp, saving time and increasing productivity. Construction Tools The HL450 has a 4 inch (102 mm) reception height, double the typical industry standard, which allows quick acquisition of the laser beam. Also included is a patented anti-strobe sensor that prevents construction lights from setting off the receiver and makes it easier to identify the laser beam signals. The Laserometer is designed to survive the tough construction site conditions. It is totally waterproof and can withstand a drop of 5 feet (1.5 meters) onto concrete. 2 year “No Excuses” Warranty! (3-Year Limited) The HL450 or Rod Clamp can be replaced by the local dealer with a new unit, if it fails For Any Reason in the First 2 years. No Excuses! A small fee applies for replacement in the 3rd year.