NISSEI RS-502 Watt Tester 1.8Mhz-525Mhz Short Wave VHF UHF Radio Power SWR Meter

Minimum Power for SWR : 3 W. Testing Function: FWD / REF POWER, REP, SWR. RF power forward reading. Switchable to show the average strength of the Envelope. 5W Accuracy Range Accuracy Range 20 - 3 KW .