GY561 RF Digital Handheld Power Meter Frequency Counter Tester Radio 1-2400MhzTAPDRA Spare Part

1. Designed to measure the frequency and power of radio equipment such as walkie‑talkies and car radios. 2. When using an external antenna, the frequency can be measured in a non‑contact manner. 3. Built‑in dummy load, easy to use, more reliable test results.