The performance specifications for AC current transformers describe how current sensors interact and operate in the required environment. The measurement range is the high current that the sensor can measure. The input voltage is the voltage required to operate the device. The frequency range describes the range of input frequency values that the sensor can operate on. Response time is the time interval between the application input stimulus and the corresponding output signal. Isolation voltage describes the maximum voltage that a sensor can handle to protect the devices connected to it. Voltage higher than this specification can damage the sensor and cause inaccurate measurements. Accuracy measures the degree of closeness between measure d values and true values. Current sensors should be calibrated regularly to ensure accurate measurements. The working temperature describes the working temperature range of the sensor design. Long term exposure of Hall sensors to temperatures beyond this range can damage the sensor.

The output type used by Hall sensors depends on the required application and operating environment. Analog voltage signal - The sensor output is an analog voltage signal. Analog current level - Sensor outputs analog current signal. It may be a standard 4-20mA used for signal transmission. Switches and sound signals - sensors can also be connected to switches or sound alarms to indicate electrical and horizontal levels through noise or process changes. Modulation frequency output - The current sensor can output any of the following frequency outputs. Sine wave, pulse sequence, amplitude modulation (AM), frequency modulation (FM), pulse width modulation (PWM), power requirements: The self powered current sensor does not require an external power source. DC powered equipment requires DC voltage. AC power supply equipment requires AC voltage.