Fangrui Product Details Sa6-v2 Portable Spectrum Analyzer Is Designed To Display The Spectrum Of Signals In The Frequency Range Of 35-6200mhz. The Device Is Designed To Determine The Amplitude And Frequency Of The Components Included In The Signal. The Presence Of A Built-in Signal Generator Allows You To Measure The Magnitude-frequency Characteristics Of Active/passive Devices (amplifiers, Repeaters, Filters) And Measure Reflections/swr. Sa6-v2 Is Designed To Work In The Range Of Ambient Temperatures From 0 To +50and Relative Air Humidity Not More Than . The Analyzer Is Not Intended: To Work In Open Areas During Snow Or Rain; In Places With A Or Environment (dust, Steam, Gas); For Use By People (including Children) Who Have Physical, Nervous Or Mental Abnormalities Or Lack Of Experience And Knowledge That Impede The Safe Operation Of The Device Without Supervision Or Training; Use By Children For Games. Due To Different Product Batches, The Appearance May Be Different, Which Does Not Affect Use. Colour:black Material:p