Profile: Control Electronics, Inc. is a designer and manufacturer of non-contacting ultrasonic flow meters, level monitors and pump controllers. Our products range from monitoring flow rates in sewage works and industrial waste discharges to controlling liquid levels in wet wells and storage tanks. Our model PDS-360 ultrasonic open-channel flow meter is a non-contacting liquid flow measuring device. The system monitors flow non-intrusively through any standard primary flow device using sophisticated ultrasonic ECHO ranging techniques. The sensor is supported above the liquid flow surface in the primary device, and is microprocessor controlled providing accurate, instantaneous flow rates with totalized volume flow and two independent 4-20 mA analog output signals programmable for GPM, flow depth and temperature.