ProTek Devices has more than 20 years of manufacturing and engineering experience, building specific test equipment solutions for myriad electronic systems. ProTek is an established manufacturer of top-quality analog and mixed-signal products, cable analyzers, antenna analyzers, meters, oscilloscopes, and power supplies. Some of the world’s largest electronic manufactures use ProTek’s advanced circuit protection components. ProTek’s innovations can protect important circuits from issues such as lightning, shorts, and failures. Military and aerospace, telecommunications, networking, industrial, and automotive industry workers turn to ProTek for reliable test equipment to protect their circuits. You can find used and refurbished products from this brand at ValueTronics.com.