Genuine New Portable Handheld GY561 Frequency Counter Power Meter for 2 way radio GY561 frequency power dot matrix liquid crystal display used in the table, mainly for the measurement of radio transmitting equipment (such as handheld radios, vehicle-mounted radio) output power, and frequency. As the built-in load, making the table more convenient to use, greatly improving reliability. Only need to measure the frequency of the occasion, an external antenna can be non-contact measurement. Features: 1. Display screen: LCM display,the minimum level of frequency is