Current Monitors
Eagle Sensors offers many types of current monitors. These are primarily used for electric heating applications to alert the customer when heaters are staring to fail in a heating system.Current monitors are also used in conjunction with motor monitoring to detect low voltage or single phasing to protect the motor from premature failure. We have several factories that we work with on standard products plus customs. Current Monitor (PDF)
Infitec
CR Magnetics
Tempco
CR Magnetics offers a low cost indicator only current sensor. The sensor will illuminate a small LED which is usually mounted on the customers panel. The application is to monitor a heater burn out. CR45 (PDF)