Voice Detector Super Strength Wall Microphone Voice Listen Detector for Engineer Water Leakage Oil Leaking Hearing

Works on wooden walls, doors, windows, steel plates, etcsuper Sensitive, carefully adjust o slowly, as not to cause discomfort to your ear-budsThis o gadget works by amplifying the vibrations of o. When people are talking in a room their voices are simply a waveband, and depending on how loud they are talking, the waveband travels short and long distances which are picked up and amplified by this device.Put the earplug into headphone hole, the sounder into the MIC hole, and clockwise rotate the ""switch on/off"" button of the volume. When the indicator light of the power works, booth the machine and adjust the volume, smoothly stick the sounder to wall the need to be listen, adjust the gear-choice buttons A B C until you can clearly hear the sound from the room.Current consumption:10mAPenetration:cement wall / reinforced wall / wood wall / iron wall / glass / hollow brickMethod:headphones or external speakersWorking temperature:-20 Celsius -50 CelsiusProbe sensitivity:-70dbo nification:20000 timesPlug Type:EU Plug,it applies to Indonesia, Germany, France, Spain, Italy and so oncolour:Silvermaterial:metalsize:8.4*6.2*2.1cmPackage Contents:1 * detector1 * Power Adapter1 * Circular probe1 * Needle probe1 * Headphone1 * Antenna FAQA: ODM/OEM ServicesQ1: May I buy samples from you?A: Sure, sample order is available for you to test our quality and service.Q2: What's the leading time?A: 2~5 days for sample orders ,bulk order according to the different product .Q3: Do you have any MOQ limit ?A: Our minimum order qty is 20pcs each model ,but we accept small order as trail order .Q4: can I get your price list ?A: Yes, pls tell us the model number and order quantity ,then we will offer you the price by email.Q5: How will you deliver the goods to me?A:We usually ship the products by express delivery to your door or by air freight to your nearest airport. If the order quantity is large, we may ship by sea container.Q6: How to proceed the order if I have logo to print?A: First, artwork for visual confirmation, and next is sample picture or sending sample to you for confirmation, finally we will go to mass production.Q7: Can i do my owe design package box ?A: yes. pls upply the artwork, and then we can print the box with your own design.Q8: Do you have any After-Sales service?A: Yes! We have professional After-sales Dept. For mega project, our technical person can also provide the in-door installation.  /* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1