GY561 RF Digital Power Meter & Frequency Counter for Walkie‑talkies & Car Radios
RF power range: 0.1W-50W. Accuracy: frequency is 140Mhz~170Mhz, when 400Mhz~470Mhz, +/- 10%. Frequency range: 1Mhz-2400Mhz. Material: ABS. 1 x Conversion interface. 2 x Connecting wire. 1 x Antenna.