Mcbazel Surecom SW-102S Digital VHF/UHF 125-525Mhz SO239 Connector Power & SWR Meter

Requires Minimum Power: For both the SWR and Power Meter functions to work accurately, the power meter needs a stable input signal of at least 0.5 watts. Handheld Radio Users Note:Many handheld radios have a low-power ("Low" or "Eco") mode that outputs BELOW 0.5 watts. If your meter isn't reading, first check that your radio is set to MEDIUM or HIGH power. The SW-102S Digital SWR Meter is engineered for optimal performance within the popular VHF (144-148MHz bands) and UHF (430-450MHz bands) amateur radio bands. This is where it delivers its most accurate readings for Standing Wave Ratio (SWR) and RF Power output, essential for setting up and maintaining efficient antenna systems. NOT for CB Radio: This SWR meter is NOT compatible with CB radios operating on 27MHz CB channel frequencies. It is designed for higher VHF/UHF bands. Ensure compatibility with your radio's frequency range before purchase. Note: The meter can measure CW, AM & FM only, cannot meausre RTTY and SSB.