Telemecanique Ultrasonic Sensors, distributed by Kaman Industrial Technologies, are ideal for starting and stopping a pump or opening and closing a valve for exact tank level control. Ultrasonic technology allows for discrete or analog level control in vessels, tanks, hoppers, bins and reservoirs of liquid or dry bulk products. The sensing range is not affected by color changes in material. They measure the top height of the material in the tank and automatically compensate for tank level errors caused by material temperature variations. The OsiSense XX Series of smart dual-level sensors offers sensing ranges of up to 26 feet. The tank level range is field adjustable. The output type, response time and other functions can be adjusted to satisfy unique requirements. 800/526-2626; www.kamandirect.com.