JMDHKK K18+ Hidden Camera Detector, Spy Camera Finder, Bug Detector, Magnetic Field Detector, Listening Device Detector – Privacy Protection Tool for Home, Office, Hotel, and Travel Security(Black)

This product was exactly what I was looking for! I was pleasantly surprised when it came in professional packaging showing the care of the product not being a cheap toy. Next I went to the instructions and was pleasantly surprised to find there was an option to turn off the beeping sound when it detects and you can switch it to a vibrate when it detects. The instructions were thorough and clear and even provided examples of when and where you might use a feature on the device. If you do not read the instructions this product will be useless and confusing to you. I got to test this on my car and used the MS function to pick up on signals. You can use your phone since it gives of signals to set the dial to the distance you want the signal to pick up by putting it on a surface and standing the distance away you want it to pick up the signal. But note if you’re too far it might just pick up the wifi signal (make sure you remove smartwatches/fitbits so it doesn’t threw off the signal while using this device). I got a strong signal behind my left rear tire. I was greatly troubled until I noticed my tired was on top an electrical cable which set off the signal. Though there was no concern, it showed this device is effective! I feel confident in using this device and its multiple functions to feel safe in my traveling. It’s easy to take apart to be compact for travel as well. I think if you have a medium sized purse you could keep it in there or even your glove box. The only think I wish it was better with is picking up a magnet from a distant, thought i understand why that’s not entirely possible so it does a fine job as it is.

The JMDHKK K18+ is a capable and affordable privacy protection tool that does exactly what it promises for its price point. It's perfect for the average person who wants a simple, effective way to check for hidden cameras and bugs while traveling . While it may have occasional false alarms and a learning curve, the peace of mind it offers is undeniable. It's a smart, practical investment for safeguarding your personal privacy.

Instead of the omnidirectional narrowband antenna that comes with the device - which picks up signals the best around 2GHz or thereabouts (guesstimate) - I purchased a cheap Logarithmic Periodic wideband antenna to attach with a short adapter cable. I had to solder the connector that came with the antenna onto the PCB, but overall the performance now is of a much higher quality and sensitivity than with the antenna that comes with the unit. I can now detect strongly the roughly 880MHz signal coming from the smart meters that are acting as data uplinks, the (poss.) cellular signal booster and wifi router that our neighbor has beaming into our office, through the wall and bouncing down off the roof (extremely strong signal, which is worrying). The sensitivity and expanded detection range has allowed me to perform surveys of radiofrequency hot zones along highly populated tourist areas, where extremely strong Line of Sight and reflected signals come from cell towers (microcells on highrise buildings, small micro/picocell poles, microcells on police department buildings, large macrocell towers... and many more sources) Overall, with the reduced price, and with the upgraded capability, I am now happy with the performance of the product. The manufacturer should really think about adding an alternate model that comes with a wideband directional antenna in a non-conductive plastic housing with a grip to point it at things.

Nope. Completely inaccurate.I bought this 2 different times & both times acted the same. i.e; It1st went off under 1 tire basin. The next week it went off under 2 of them. Then it went off on my trunk the day after.

So far works ok. Wish I would have known that there were higher end models from this company as we wanted to purchase in bulk and use this as a test to provide to my companies team members for safety while on job sites.

Well built and easy to use.

This product does exactly what it promises. The price is great. It’s also very compact. I checked it on my home. A hotel room. And a large construction job site. It comes with a very good manual. It has solid construction/design. Will recommend

This detector produced false positives all the time, making it pretty much unreliable and not useful

Great device for the price. Works exactly as described.

very good

I bought the Silver K18 mainly for travel since I stay in hotels quite often. The first thing I noticed was how small and lightweight it is — about palm size and easy to carry in a bag or suitcase. The metal body also feels pretty solid. It’s very simple to use. Just turn it on and adjust the sensitivity knob. I tried it around the TV, smoke detector, outlets, and mirror in my hotel room. It did alert a couple of times, which turned out to be normal wireless signals, but it shows the hidden camera detector / bug detector is working. I also like the vibration mode, which is useful at night. Battery life seems good so far. Overall, a simple and practical privacy protection device to bring when traveling.

Kunde inte upptäcka min AirTag som var i närheten trots att jag var i källaren och det fanns inga andra källor. Upptäckter magnetiska fält bara i väldigt nära håll.

The product is nice to use. User friendly