Features: It is a portable vector networking tester with extended 50KHz-2.7GHz frequency ranging, delivering high precise S parameter measurements for superior RF component analysis compared to older 1.5GHz models. Featuring metal housing, high resolution screen, and multiple measurement mode, this device offer professional RF testing capabilities in handheld form. Ideal for RF engineers, amateur radio enthusiasts, and electronics technicians requiring accurate antennas performances evaluation and networking characteristic verification. Perfect for field testing, laboratory environment, or antennas tuning applications where portable functionality and 2.7GHz bandwidths is critical. The upgraded architecture ensures stable measurements, with graphical data visualization simplifying complex RF analysis tasks for both professional and advanced hobbyists. Specifications: Component:Metal Size:Approx.81x54x14mm Bandwidths: 50KHz-2.7GHz Dynamic ranging: 80dB (50KHz-900MHz) 60dB (900MHz-1.5GHz) 50dB (1.5GHz-2.7GHz) Frequency accuracy: <0.5ppm Frequency stability: <2.5ppm Modify the port names to Port1 and Port2 Package Includes: 1 Set Networking Measurement Tool 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.