Features: K22587 digital SWR meter delivers precise standing waves ratio measurements for seamlessly antennas tuning across radio, and mobile communication systems. Engineered with PCB material, this meter ensures reliable signal analysis with low insertion loss and ruggedly durability. Ideal for amateur radio operators, field technicians, and communication enthusiasts seek accurate SWR monitoring in real world setups. Perfect for optimizing antennas performances during installations, troubleshooting signal issue, or maintaining best efficiency in portable/mobile setups. Its intuitived interfaces and broad frequency compatibility making it essential for optimizing transmission clear across diverse communication configurations. Specifications: Component:PCB Size:Approx.10x4cm/3.94x1.57inch Color:Black Package Includes: 1pcs Digital SWR Meter note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.