The LevelRat from Keller America is built to provide reliable, low-maintenance service in wastewater level measurement applications. It offers 0.5 percent full scale total error band accuracy, dual outputs (one analog and one RS485 digital), and models equipped with a 4-20mA analog output include lightning protection. It is built to order in the U.S. with a lead time of three business days. 877-253-5537; www.kelleramerica.com; Booth 428.