The 50RX total station is rugged and lightweight. Featuring a Class3R EDM with a reflectorless range of 400 m., a full alphanumeric keyboard includes Bluetooth Class 2 technology. It is equipped with a green and red guide light to optimize setting-out tasks and a built-in laser plummet. Available in 2-, 3-, 5-, and 6-in. models. Sokkia Corp. 800-476-5542.