◈제품문의 M.P : 010-오사일공-9508 E_mail : ct9508@naver.com Homepage : www.coretech21.com The 53220A 350 MHz universal frequency counter/timer is a two-channel frequency counter with the ability to make all the frequency and time interval measurements you depend on. An optional microwave channel can be added to measure 6 or 15 GHz. Key Specifications Two 350 MHz inpu..