?Real-time spectrum analysis function, support real-time spectrum scanning, SPAN/RBW/CENT/MARKER function, MAXHLOD function, maximum power automatic detection ?Stable performance, high detection accuracy, detection frequency range 240-960MHz, can detect real-time spectrum, frequency chromatogram, spectrum thermogram and so on in the frequency band ?The function of frequency chromatogram shows the whole time and spectrum characteristics in a period of time. It can record all the spectrum distribution in 5 minutes, which is convenient for viewing the frequency interference or emission leakage ?Built-in lithium batteries can be charged by standard 5V charger of mobile phone. It can be used for about 9 hours at full power. Small in size, compact structure, easy to carry, very suitable for outdoor field measurement ?100% Guarantee: High quality product, we promise to do everything possible to satisfy all customers. However, if you are not 100% satisfied with our service or our products, simply contact us. We are always at the side of our customers to support and continuously seek new ways to improve