The ProChem LS - Ultrasonic ultrasonic level sensor from Peabody Engineering makes monitoring tank levels a lot easier. It is intuitively designed, is compact and user friendly. It provides accurate and reliable noncontact measurement of chemicals, oil, wastewater and water, and operates on either an internal battery or 24-volt DC operation with 4-20mA output for process control functionality. The easy-to-read display is menu driven and easy to calibrate. Gemini and ProChem tanks are preprogrammed to the sensor, and other tanks are easily calibrated in a few simple steps. 800/473-2263; www.4peabody.com; Booth 6136