MFJ Enterprises Original MFJ-269CPRO .53-230 / 430 ~ 520 MHz Antenna / SWR / RF Analyzer w/ LCD, Counter & Meters. Frequency Range: 530 KHz - 230 MHz / 430 to 520 MHz Large Easy to read 2 Line LCD Display and side by side Meters Note: 415-520 MHz operation is for SWR, only. Batteries Included: No - Ten AA batteries External Power Input Voltage: 12 Vdc