Home Depot offers the Bosch 50-Foot Compact Laser Distance Measurer, model no. GLM 15, for $29.88 with free shipping. (Lowe's charges about the same with in-store pickup; Amazon charges about the same with free shipping for Prime members.) That's tied with our mention from three weeks ago, the best now by $20, and the lowest price we've seen. (It's a current best by $20.) It measures in metric and SAE increments and features an accuracy to 1/8" at 50 feet.