EDD-24T - Handheld Non Linear Junction Detector (NLJD)

EDD-24T - Handheld Non Linear Junction Detector (NLJD)
Zoom the image with the mouse
(No reviews yet) Write a Review
In Stock and ships immediately once Bank Wire Received

Select Available Options:

EDD-24T - Handheld Non Linear Junction Detector (NLJD)

EDD-24T - Handheld Non Linear Junction Detector (NLJD)

EDD-24T is a Handheld Non Linear Junction Detector (NLJD). It detects all types of electronics - whether active, passive or even switched off.

The EDD-24T is a compact handheld Non Linear Junction Detector or NLJD. It will detect the presence of semiconductor circuits that are used in all modern electronic devices such as mobile phones, tracking devices, listening devices, covert cameras, digital voice recorders, SIM cards etc. Importantly, the EDD-24T will detect such devices whether they are switched on and in use, powered on but in standby mode, or even switched off without any power.
Principle of operation
Semiconductor Electronics are used in all modern electronics and are made using Silicon substrates. When high frequency radio signals are transmitted directly over silicon it produces a strong second harmonic frequency of that radio signal. Other materials such as some bi-metals or oxidised metals can respond with a third harmonic signal.
The EDD-24T transmits a focused directional signal on 2.4 GHz (ISM Band Type B). It receives on 4.8GHz (Second Harmonic) and 7.2GHz (Third Harmonic).
The highly sensitive receiver will respond to any signals produced on the 2nd Harmonic by even the smallest piece of Silicon such as that used in SIM Cards, Mobile Phones, Bugging Devices, Voice Recorders, Covert Video cameras etc. Importantly those devices do not have to be in use, in standby or even have any power connected to them to be detected.
The 3rd Harmonic receiver acts as a valuable confirmation for signals that may be ambiguous or are not a threat such as those in oxidised metals, bi-metals etc.
Probability Indicator
To allow even an inexperienced user to make a quick assessment of a detected signal the EDD-24T uses an intelligent algorithm to analyse the detected signals from both the 2nd and 3rd Harmonic Receivers and evaluate the probability of material being detected as ‘Silicon’ or ‘Metal’.

Audio Confirmation
The EDD-24T Can provide audio confirmation of detected signals in two ways, through the internal loudspeaker or earphones.
TONE Mode can be used to provide an audible tone of a detected signal on the 2nd Harmonic only. This enables the user to search without looking at the display screen. The TONE changes in pitch according to the strength of the detected signal.
DEMOD Mode can be used to listen to an actual demodulated signal of the 2nd Harmonic Receiver. When no signals are detected a random audible ‘Click’ sound will be heard. In some cases when Silicon is detected the click level will reduce or become completely silent.
The EDD-24T is genuinely portable for handheld use and weighs just 750g. It is encased in a machined aluminium enclosure for ultimate durability with a tough plastic antenna cover. The internal Lithium Polymer battery pack gives up to 4.5 hours of use from one charge. The whole package is supplied in a compact military standard carry case for ultimate protection and portability.
The EDD-24T is designed, manufactured and tested in England to highest technical standards.
Supplied in package
-EDD-24T Handheld Electronic Device Detector - Weight 700g
-Charger - 110V to 240V AC input (Auto Switching) with International Adaptors Output 5V DC 2A
-Compact Military Standard Carry Case

-Handheld Non Linear Junction Detector (NLJD)
-Detects all types of electronics - whether active, passive or even switched off
-Easy to operate with an intuitive user friendly interface
-2.4 GHz Transmit - 4 Watts
-2nd Harmonic (4.8 GHz) and 3rd Harmonic (7.2 GHz) Receivers
-As powerful and sensitive as much larger so called ‘portable’ units
-Detected material Indicator ‘Silicon’ or ‘Metal'
-Will even detect the latest NANO SIM cards from up to 20cm.
-Audible Tone and Demodulation Function through speaker or earphones
-Battery life up to 4.5 hours
-Weight just 700g
-Machined Aluminium Enclosure with Moulded Plastic Antenna Cover
-Supplied in a Military Standard carry case
Technical 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 Main Unit 700g
with Carry Case 2.0kg
Dimensions,mm 225x118x51
Carry Case Military Standard 321mm x 229mm x 111mm

0 Reviews

This product hasn't received any reviews yet. Be the first to review this product!
Write a Review

Shipping & Returns

Audio devices may not be used to violate the privacy rights of others. In no way will Spy Associates or its subsidiaries or partners be held responsible for inappropriate use of these products.

FREE Ground Shipping On All Items Over $199

Receive free ground shipping on all items we carry. Depending on your location, carrier may vary depending on maximizing delivery speed to your location.

Same Day Shipping - Order By 2pm EST Monday - Friday

Your Order will be given to the shipping carrier the same day you place the order, not including national holidays & weekends. Shipping days do NOT include weekends UNLESS you order SATURDAY DELIVERY at checkout. Any order placed after 2pm weekdays or on Saturday / Sunday will be shipped out the next business day.

Some custom built products may require up to 48 hours, which includes custom audio add-ons that may require 72 hours. You will be notified of any delays as soon as possible.

International Shipping & Customs

YES! We ship worldwide. On International Orders, any CUSTOMS FEES are the responsibility of the purchaser NOT SpyAssociates. Every country's import rules are different, so it's impossible to guess how much, and if any fees may apply.

Return Policy

We test all of our products before shipping to ensure they are in working order.

Your Satisfaction Is Our Number One Concern


All products which are special ordered by the person ordering and are NOT subject to cancellations. Due to the nature of our product line, returns will only be accepted for products damaged upon shipment to the customer*. All returns must be authorized by before product(s) is returned. will replace, refund, or credit your account for returned product(s) at's discretion. We have been forced to implement this policy because of the attraction of our products to unscrupulous people who return products after they have profitably gained from the short-term use of the products.

*Special exceptions may be made on a case by case basis determined by In this event, returns are subject to deductions for shipping costs and a 25% restocking charge and must be returned within a ten (10) day period from date of receipt of product(s). NO refunds will be given for products returned without explicit permission from

You Are Guaranteed QUICK & ACCURATE Service

Any return must be authorized by a representative of and under no circumstances will returns be accepted otherwise. Authorization and shipping instructions must be obtained from No returns will be authorized after ten (10) business days of receipt of product(s) by the customer, unless found to be defective, in which case we will replace at no charge once returned with authorized RMA.

We at strive to offer our customers the best products at the best possible prices. Due to the nature of the products, returns will not be accepted unless the product is found to be defective or unless otherwise explicitly stated on the specific product page.

Shipping & Handling Charges Are Non-refundable.


Every product receives FREE LIFETIME SUPPORT. We guarantee all products to be free of defects in workmanship and material for 90 days (some manufacturer's warranty is one (1) year or lifetime - please see info on the page for specific product's details) after sale to the customer. We will replace or repair the product(s) at our option providing there is no evidence of customer misuse, or alteration.

This device will only connect to 2.4 GHz Wi-Fi Networks with passwords that do not contain special characters.

We are unable to guarantee Wi-Fi connection will work with all routers. Although most networks are compatible, certain routers enact stricter security measures that may block remote connections to the camera. Some examples likely to experience these issues are hotels/motels, corporate networks, 4g hotspots, open wifi networks like Starbucks, etc. Some WIFI units require the unit to be paired with a router if the end user is wanting to look at the livestream or receive motion alerts. Only compatible with Android 6 & up, iOS 8 & up. These items will need to format the MicroSD Card before use. This is done through the app.

Related Products