St Louis Electronic Coil and Transformers Mfrs 3500 Scarlet Oak Blvd Manufacture of Current, Voltage, Power and Frequency monitoring products for Alternating and Direct Current including Current Transformers, Transducers, relays, indicators, hall devices. St Louis MO Electronic Coil and Transformers Mfrs C R Magnetics www.crmagnetics.com current transformer current transducer current relay voltage transformer current transformer power transducers potential transformer Hall Effect Hall-effect DC Direct Current Magneto-Restrictive Magneto restrictive Hall Device current current transformer current transducer current relay voltage transformer current transformer power transducers potential transformer Hall Effect Hall-effect DC Direct Current Magneto-Restrictive Magneto restrictive Hall Device current Business Reviews C R Magnetics Testimonials