35M-4400Mhz Spectrum Analyzer 4.3Inch LCD Screen Professional Handheld Spectrum Analyzer Measurement Interphone Signal long-lasting ,Easy to Use

Made of fine quality material, practical, easy to operate and use, wide application ran, has a long service life. Adopt stm32f407 single-chip computer (main frequency 168M) and 4.3-inch TFTLCD (480x800) color LCD screen. Full aluminum alloy housing and rotary encoder control. Built-in lithium battery, full English display. Spectrum display ran is 35M-4400MHz. Scope of use: walkie-talkie, plaything remote control, 2.4Gwifi. dBm ran:-80dB-10dB (support manual adjustment of calibration amplitude), the unit does not have an amplifier circuit inside, if you need to measure small signals, you need an external amplifier.