ET-RD001 Eas Deactivator Frequency range 7.4 to 9.0 MHz Operating distance Up to 20cm ET-RD001 Eas DeactivatorFrequency range 7.4 to 9.0 MHzOperating distance Up to 20cmAntenna connection Up to 2 antennasRed LED light Deactivator active, onOperating temperature 0°C-45°CPower source AC/AC adapter, 18VDC