Profile: Orbeco-Hellige, Inc. designs and manufacture water and waste water testing equipment. Our product line includes BOD systems, floc testers, nesslerizers, calorimeters, turbidity meters and electrochemistry meters. We offer a full range of instruments, reagents & accessories for testing over 100 parameters covering a broad range of applications from drinking water & wastewater, to swimming pools and spas. Our ET 740 model with 4 stirring places and the ET 750 model with 6 stirring places are fitted with an illuminated back panel for glare-free observation of the samples and are suitable for laboratory use. The flocculation tester ET 730 with 4 stirring places is primarily designed for field use. The 4 stirring points are arranged in a circle around a lamp making it easier to observe the flocculation process. Our Aqua tester is a precise, visual instrument for rapid and accurate tests in the lab. It is the most advanced visual system for the measurement of the color of water, fluoride, and low chemical concentrations.