Johnson Level Red Dual Slope Rotary Laser System | JRT300-RDHV-S 845344 It provides audio detection signals

It provides audio detection signals that peak in frequency when the locator’s tip is held directly over the target

but there is a handle so it ca be kept in place

13' grade rod (feet/8ths)

The Stabila LAX 600 G is a high-performance self-leveling line laser designed for precise layout work in interior construction

Johnson Level Red Dual Slope Rotary Laser System | JRT300-RDHV-S 845344 It provides audio detection signalsJohnson Level's Dual Slope Rotary Laser is built to deliver maximum performance and accuracy on large scale construction sites. Featuring an impressive 4,000 foot range, it provides unmatched jobsite coverage for both horizontal and electronically controlled dual slope operations up to 5 degrees on the X and Y axes. Designed for tough environments, it boasts an IP67 rating for full protection against dust and water, while impact resistance up to 6