Cxx Diy Hy929High Strength Wall Microphone Voice Listen Detecotor For Engineer Water Leakage Oil Leaki

Worksonwoodenwalls,doors,windows,steelplates,etc.HighlySensitive,carefullyadjustaudioslowly,asnottocausediscomforttoyourear-budsThisaudiogadgetworksbyamplifyingthevibrationsofaudio.Whenpeoplearetalkinginaroomtheirvoicesaresimplyawaveband,anddependingonhowloudtheyaretalking,thewavebandtravelsshortandlongdistanceswhicharepickedupandamplifiedbythisdevice.colour:Black+SilverMaterial:metalPackageContents:1*Detecotor1*USBCable1*Circularprobe1*Needleprobe1*Headphone1*useManualOnlytheabovepackagecontent,otherproductsarenotincluded.Note:Lightanddifferentdisplaysmaycausethecoloroftheiteminthepicturealittledifferentfromtherealthing.Themeasurementallowederroris+/-1-3cm.