On Home Depot where you can now get this
DeWalt Rechargeable Pocket Laser 40′ Distance Measurer AND 25′ Tape Measure 激光测距仪和卷尺降价打折 for just $19.88 (regularly $29.88)!

The DeWalt 40′ Pocket Laser Distance Measurer is small and easy to use with one-button operation. It can be used for everything from electrical and plumbing work to basic home measurements. The tape measure can be used for up to 25′ and is DeWalt quality.