

🕵️♂️ Stay one step ahead—because your privacy deserves VIP treatment.
The JMDHKK Hidden Camera Detector is a compact, battery-powered device designed to detect hidden cameras, GPS trackers, and wireless bugs through RF signal, magnetic field, and infrared detection. Featuring adjustable sensitivity, audio and motion alerts, and an integrated flashlight, it offers professional-grade privacy protection for travel, office, car, and home environments.








| ASIN | B07Q3WN2CR |
| Alert Type | Audio and Motion |
| Batteries | 1 Lithium Polymer batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Lithium Ion |
| Best Sellers Rank | #145 in Hidden Cameras |
| Color | Gray |
| Compatible Devices | Smartphone |
| Control Method | App |
| Controller Type | Push Button |
| Customer Reviews | 3.8 3.8 out of 5 stars (305) |
| Date First Available | August 17, 2019 |
| Focus Type | Manual Focus |
| Included Components | Antenna, Charging Cable, GS Probe, Main Unit, User Manual |
| Indoor/Outdoor Usage | Outdoor |
| Installation Type | Screw In |
| International Protection Rating | IP54 |
| Item Package Quantity | 1 |
| Item Weight | 6.4 ounces |
| Item dimensions L x W x H | 4.7 x 2.1 x 0.78 inches |
| Item model number | K20 |
| Light Source Type | LED |
| Low light technology | Night Color |
| Manufacturer | Biznlink |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Mounting Type | Wall Mount |
| Number of Channels | 4 |
| Number of Items | 1 |
| Part Number | K20 |
| Power Source | Battery Powered |
| Product Dimensions | 4.7 x 2.1 x 0.78 inches |
| Product Grade | Commercial |
| Room Type | Office |
| Special Features | Wireless,Magnetic |
| UPC | 615228417808 |
| Unit Count | 1.0 Count |
| Video Capture Format | MPEG-4 |
| Video Capture Resolution | 4k |
| Voltage | 3.7 Volts |
| Wattage | 4.07 watts |
| Wireless Communication Technology | Wi-Fi |
N**.
Inexpensive and more than effective
This review is for the JMDHKK Bug Detector Anti Spy RF Signal Detector for GPS Tracker Hidden Camera ... It works. I was a little unsure whether this was going to be effective, but I read the instructions, tried it out on a few known devices, then searched the car that we knew was being followed. I found an AirTag (yes, it will find those) with its help, very quickly. The RF detector needs to be adjusted correctly - turn it down just enough that whatever baseline transmissions in the area are not indicated - but once it is, it easily responds to devices like this. The point of actual detection was over two feet away for me, which convinced me that it's more than capable. I haven't had opportunity to actually use beyond testing the magnetic detector (testing it out on known magnets worked really well, and the light activation is clever) or the camera detector (works on known cameras really well, the instructions do specify that it takes some expertise to get right, and I agree). Thanks, y'all. For ~$40, you helped me protect someone from a stalker. If you're worried someone put a tracking device on your car, buy this one, it works.
H**R
No funciona como dicen. No detecta nada. Lo devolvi.
B**I
A Traveler's Must-Have for Peace of Mind!
I've taken this gadget with me on numerous trips, especially when I stay at hotels, and it never disappoints. The wireless signal detection is impressive, picking up a wide range of frequencies which is reassuring when you're unsure about your surroundings. I found the camera detection especially handy, ensuring there were no prying eyes in unfamiliar rooms. The strong magnetic detection feature was quite the surprise! Used it around my car a couple of times out of curiosity and the vibration alert gives a clear indication whenever it senses something. Handy if you're ever suspicious about unexpected car troubles. However, while the diverse alarm functions are useful, I sometimes found the sound alarm a tad too loud, especially in quiet environments. A volume adjuster would be a great addition in the future. All in all, if you're someone who values privacy, especially when traveling or in new environments, this is a solid tool to have in your arsenal. Worth every penny for the peace of mind it brings. Helpful tip: Make sure to go through the instructions thoroughly. It's simple to use once you get the hang of it, but there's a small learning curve initially. Safe travels!
A**.
Sturdy
Good purchase.
D**K
Love it
Love it. Easy to use and make me feel good knowing im not being spied on. I got it for a good price. Long last battery and size is prefect. Functionality was easy!!@
K**R
Magnet detector not effective
Turned on the magnet detector and had a magnet in my hand and it only registered when it was 1 inch away from the part that attaches to metal. It did not register the other side. If hunting for tracker/magnet attached to your car, its not capable of finding it.
J**D
Awesome Device!
EXCELLENT DETECTOR!!! I purchased this device because of strange, seemingly coincidental, suspicious behavior of my apartment managers, & owner of the property I am in. Once the item was calibrated, we wanted to use it & were assured that there was no Spyware in our bedrooms, however the signal was strong in our wall heater. It was recently worked on. Little strange! This item saved us at least a $1500 charge from not having to hire private investigators. Definitely 5 STARS!!!
P**K
Doesn’t detect.
I tested it out using different gps tracking devices and hidden cameras with audio. It didn’t pick up on any of them.
J**E
Picked up this detector mainly to check for hidden cameras and GPS trackers in hotel rooms and Airbnbs while traveling. It’s easy to use with a simple two-button setup — no need to go through complicated menus or settings. This device actually covers three core detection functions: Hidden camera detection (infrared lens scanning) Magnetic GPS tracker detection (for scanning vehicles or bags) Wireless bug / eavesdropping device detection (RF signal scanning) I like that it gives both sound alarms and vibration alerts, which is useful depending on where you are — like using vibration mode in quiet environments or shared spaces. The LED signal strength indicators are clear, and the unit is compact enough to fit in my travel bag. I’ve been using it for a few weeks now while moving between different hotels and shared workspaces. It gives me peace of mind knowing I can do a quick scan in just a few minutes. Battery life is decent — still on the first charge after several uses. A couple of things to note: the magnetic detector works best when held close to a surface (which is expected), and sometimes it picks up strong Wi-Fi signals, so it takes a little practice to understand what’s normal. Once you get used to the signal patterns, it becomes really efficient. Overall, it’s a great personal privacy protection tool that combines several useful functions into one device. I’d recommend it to anyone who values security and wants a compact, reliable solution for detecting hidden surveillance devices.
A**R
Well packaged, sturdy, easy to use. I tested it on my own security monitoring devices (I have hidden cameras to protect my home): it works well at detecting the magnetic fields generated by anything hidden and active. It is a compact small device, good to take anywhere.
I**1
Lovely looking packaging with a good quality feel to the product. Very user friendly and extremely accurate
A**L
Très bien fait la localisation des caméras caché
A**R
Seems to work well
Trustpilot
2 weeks ago
1 week ago