Features: 1. Convenient To Carry And Easy To Use2. Applied To AM Signal Envelope Detection: This Product Uses A Voltage Doubler Detector (Composed Of Two Reverse Microwave Diodes), Which Is Twice As Sensitive As A Single Tube Detector (6DB).3. High Sensitivity (Typically -30DBM, Even -40DBM),4. It Is Not Comparable To Ordinary 2AP9, 1N60.5. It Can Be Directly Used To Detect The Level And Amplitude Of Carrier Signals, Which Is Equivalent To A Detector.Description:Model: RF ModuleMaterial:PCBcolour: As ShownPackage Contents:2 x RF Attenuator ModuleNote:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The UseOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.