28 Inch TFT Monitor Antenna Analyzer MF HF VHF UHF Vector Network Analyzer Tester with SD Card Slot USB 5V 120mA for VSWR Phase Feature: 1. With the addition of the ABS casing and the new packaging, Compared to many customers using 3D printed housing, it saves costs. 2. Support typec-type c line, more convenient to connect to mobile phones ,Support to most Android phones with the same screen display(Doesn't support for iPhone). Solve the problem of small screen, insufficient brightness and so on. 3.Support time domain analysis function (TDR) 4.The battery usage can be displayed on the interface. 5.The product serial number is attached to the back 6.Changed the outer packaging, the world cover hot stamping carton, plastic inner protection. Reduce problems caused by transportation shocks and other processes. Specification: PCB: 54mm x 85.5mm x 11mm (without connectors, switch size) Measurement frequency: 10KHz-1.5GHz RF output: -13dbm (max -9dbm) Frequency accuracy: