The Model HHM590 Series clamp-on digital multimeters (DMMs) includes over 10 full featured models. All clamp-on meters include a free set of safety test leads, 9V alkaline battery, type K beaded wire thermocouple (temperature models only), and complete operator's manual. Each unit has a GS-Mark EN61010-1 Approval Voltage Category III 600 V, Pollution Degree II, and an ac/dc current clamp. Other features include 1,999-, 2,500-, 3,999-, and 4,300-count resolutions. OMEGA ENGINEERING INC., Stamford, CT. (800) 872-9436.