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JJN digital
EDD-24T NLJD for Active and Passive Devices
9.859,00  EUR  ex VAT
12.323,75  EUR  inc VAT
Delivery in 5 days
14 day refund
24 month warranty

JJN Digital EDD-24T Handheld Electronic Device Detector is a Non-Linear Junction Detector (NLJD) that detects all types of electronic equipment, no matter if active, passive, or powered off. 

The EDD-24T detects contemporary electronic devices like mobile phones, tracking devices, listening devices, covert cameras, digital voice recorders, Nano/ SIM cards, etc. It will detect them in all working mode scenarios: powered on, powered off (and without any power), in standby mode, and in use.
How does it work? Semiconductors in current electronic products are made using silicone. Silicon responds with a strong second harmonic frequency when high-frequency radio signals are transmitted directly over it. In contrast, bi-metals and oxidized metals respond with a third harmonic signal. The NLJD transmits a focused directional signal on 2.4 GHz (ISMBand Type B) and receives on 4.8GHz (Second Harmonic) and 7.2GHz (Third Harmonic).
This means, that when a high-frequency radio signal hits even the smallest amount of silicone, like the ones found in mobile phone parts, SIM cars, and so on, the high-sensitivity receiver will respond to it (with a strong 2nd Harmonic frequency) and thus detect it. The same goes for the 3rd Harmonic receiver that responds to metals and bi-metals and can serve as a good confirmation source for signals that are at first ambiguous.

EDD-24T NLJD is user-friendly and allows a wide range of people to use it; from beginners to professionals. It uses an intelligent algorithm to analyze the detected signals (2nd and 3rd Harmonic) and evaluates the material probability (Silicone or Metal). It has receivers equally powerful and sensitive when compared to much larger portable units on the market.

It is compact, enclosed in machined Aluminium, and has a battery life of up to 4,5 hours. The Audible Tone and Demodulation Function is available via the speaker or the provided earphones.

It is made in England (designed, manufactured, and tested), while abiding by high technical standards and delivered in a Military Standard carrying case. 

EDD-24T Indicator of detected materials: Silicone or Metal. Picture from Video below.

JJN Digital EDD-24T NLJD Main Features:

  • Detects active, passive, and powered-off electronics
  • Simple operation with a user-friendly interface
  • Has an indicator for detected materials: Silicon or Metal
  • Detects the newest NANO SIM cards from up to 20cm
  • 2.4 GHz Transmit with up to 4 Watts
  • 2nd Harmonic (4.8 GHz) and 3rd Harmonic (7.2 GHz) Receivers
  • Equally powerful and sensitive, when compared to much larger portable units on the market
  • Audible Tone and Demodulation Functions available via the speaker or earphones
  • Battery life up to 4.5 hours
  • Premium quality device in a machined Aluminium enclosure
  • Comes in a Military Standard carry Case


EDD-24T Simple button operation

JJN Digital EDD-24T NLJD Full Specifications:

Transmit Frequency: 2.400 GHz to 2.425 GHz (ISM Band Type B)
Transmit Power Level: up to +30dBm (1 Watt)
Radiated Power Antenna: up to +36dBm (4 Watts) within allowable limits of ISM band (Type B)
Display: 3.5-inch Colour TFT Daylight Readable
Receiver Sensitivity: better than -120dBm on 2nd and 3rd harmonics
Receiver Bandwidth: Approx 10KHz
Battery: 3.7V Lithium Polymer Internal rechargeable
Battery Life: 4.5 Hours (Minimum TX Power) 2.0 Hours (Maximum TX Power)
DC Charge: Micro USB Socket 5V 1A
Charger: Input 110/220V Auto-switching - International Adaptors Output 5V DC 2A
Audio: Internal Loudspeaker or via 3.5mm Earphone Socket
Operating Temperature: 0 to 40 degrees C
Enclosure: Machined Aluminium Enclosure with Plastic Antenna Cover
Weight of the Main Unit: 700g
Weight with carrying Case: 2.0kg
Dimensions: Main Unit Height 225mm * Width 118mm * Depth 51mm
Carry Case: Military Standard 321mm * 229mm * 111mm 
Certificate: CE Certificate
Country of Origin: Made in England

How to use the EDD-24T NLJD:

  1. Make sure the device is charged
  2. Power on the device and go to "Settings" to choose your desired parameters
  3. Start the scan

Package contents:

  1. EDD-24T Handheld NLJD Electronic Device Detector 
  2. A 110V to 240V AC input charger with auto-switching, and with international adaptors output 5V DC 2A
  3. Earphones
  4. Compact Military Standard Carry Case


Learn more about complete counter surveillance equipment available at SpyShopEurope.com.

To discover more about JJN Digital, take a look at the whole JJN Digital Product Portfolio



For more details please take a look at the PDF available for download below.
Use only the provided charger and cable, that are supplied in the accessories of the unit. Usage of other chargers may damage the unit and is not covered by the product warranty.

24 Months Warranty 

>>Download detailed specifications (PDF)<<

Disclaimer: Items on the website are not be used for the purpose of illegal surveillance of unsuspecting subjects. The items are to be used only in compliance with all the local laws and regulations under the threat of penalty.

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