Emeryville Electric Equipment Manufacturers 1307 66th St Knopp Incorporated is a supplier of test equipment to the electric utility industry. Our products include meter test equipment, transformer test equipment, precision transformers, voltage testers, and phase sequence indicators. Emeryville CA Electric Equipment Manufacturers Knopp Inc www.knoppinc.com precision transformers meters test equipment current voltage calibrations calibrators comparators phase sequence rotation testers wiggies wiggys K-60 loading CL-6 burdens mass transit BART rapid precision transformers meters test equipment current voltage calibrations calibrators comparators phase sequence rotation testers wiggies wiggys K-60 loading CL-6 burdens mass transit BART rapid Business Reviews Knopp Inc Testimonials