1. HP363 Is A Radio Frequency Power Meter, Which Operates Through Buttons.2. Simple Structure, Easy To Use, Stable And Reliable Performance, High Sensitivity And Fast Measurement Speed.3. Application: RF Power Measurement; Instrument Calibration;4. First, Db Is A Pure Counting Unit: For Power, Db = 10*LG(). For Voltage Or Current, DB = 20*LG(). The Meaning Of Db Could Not Be Simpler. It Is To Express A Number (Followed By A Long String Of 0s) Or A Small Number (Followed By A Long String Of 0s) Relatively Briefly.5. This Is True Whether It Is In Of Control Or Signal Processing. For Example, Sometimes You Can See The Expression Of Dbmv1. Measuring Power Range: -50~+0 Dbm (External Rf Attenuator Can Be Extended To 100dbm)2. Measurement Power Resolution: 0.1 Dbm3.Measurement Frequency Range: 10000mhz4.Measurement Power: 1nw~1mw5. Working Voltage: 7~12 6. Working Current: Less than 50 Ma7. Working Temperature: -40~658. Storage Temperature: -40~659. Size: About 55 x 45 x 10 mm (Length*Width*Height)10.Colour:green11.Material:PCBPackage Contents:1 x RF 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.