• DT-810 Non-linearJunction Detector
  • DT-810 Non-linearJunction Detector
  • DT-810 Non-linearJunction Detector
  • DT-810 Non-linearJunction Detector
  • DT-810 Non-linearJunction Detector

Model: DT-810

Non-linear Junction Detector

General Configuration

Working Frequency Range: 2.404GHz-2.472GHz
Receiving Harmonic Range: Manual or Auto
Receiving Sensitivity: Less than -140dBm
Battery: Li Battery, working over 5 Hours
Interactive Interface: LCD, Audio, Vibration
  Detection Distance: GPS module @ 400-500mm; Mobile Phone @ 180-220mm; SIM Card @ 90-120mm

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DT-810 is a non-linear junction detector developed with modern advanced technology. It can detect any electronic equipment hidden in walls, floors, ceilings, lamps, furniture or containers. Whether these electronic devices are transmitting signals or not, they are alerted by display, vibration and sound prompts, so that the detectors can focus on hidden targets.

NLJD Detectors from iSecus-What can be detected

Technical Principles:

Nonlinear junction detector emits S-band fundamental wave to the target area or object, and the receiver captures the second and third harmonics generated by the target object. Artificial intelligence algorithm is used to analyze the harmonic law, so as to detect and identify the electronic equipment with non-linear junctions.

Application scenarios:

It can be widely used in government, public security, prison, justice, army, education examination, business security and personal privacy protection, etc.

Business Safety: Detecting unauthorized electronic devices, such as eavesdroppers, mobile phones and devices with SIM cards, hidden in company board rooms or secret offices;

Public Safety: Detecting electronic devices hidden or prohibited from use in safe areas, such as detonating devices, remote controllers, etc.

Personal Privacy Protection: Hidden cameras and surveillance devices such as recording pens, cameras, etc. in residential buildings and hotels.

Non-Linear Junction Detector Application Scenerios


  • High positioning accuracy: The product uses 2400MHz radio frequency detection technology with high precision positioning characteristics.

  • High semiconductor recognition ability: the product built-in spectrum analyzer supporting second and third harmonic detection can quickly and effectively identify devices containing semiconductors.

  • High Sensitivity: Especially for SIM card devices with high sensitivity, to ensure that secrets, mobile communications equipment can be quickly detected.

  • Low false alarm rate: built-in nondestructive detection algorithm greatly improves the detection capability, and the false alarm rate is very low.

  • High Safety and reliability: meets the requirements of electromagnetic radiation and absolute safety to human body.

  • Flexible operation: support automatic transmission power and manual mode selection, easy to operate manually

  • User-friendly interface: support OLED visual graphical interface, vivid display of power emission level and second and third harmonic graphics, easy to operate.

  • High performance/price rate: with the world most cost-effective, cost-saving and excellent performance.

DT-810 Non-linearJunction Detector


Working Frequency2400MHz
Head-end Screen3.5" LCD, Displaying TX Power, 2nd&3rd Harmonic Signal, Electronics or Oxides info and Icon as Detection Result
Central Control Panel Screen1.8" LCD, Displaying Control Menu
Search LightYes
Telescopic LengthMaximum up to 1.45m
Working Voltage7.4V
Frequency Range2.404GHz-2.472GHz
Receiving 2nd-3rd Harmonic Range4.808GHz-4.944GHz;
Pulse Mode Transmit Power (Max.)0-4W (EIRP)
Receiving SensitivityLess than -140dBm
Receiving Dynamic Adjustable Range30dB
Battery Working Time > 4H
Battery TypeReplaceable Lithium Battery,
Charging TimeFast Charging 2.5H/block
Interactive Interface (LED screen
audio, vibration)
LED Display Received Harmonic Signal Intensity;
Audio Prompts are supported and headphones can be connected;
Supporting Vibration Tips
Detect penetrabilityIt can penetrate 370mm brick wall
Product Dimension(750mm x 114mm x 108mm)±5mm
Transition Case Dimension(700mm x 330mm x 180mm)±10mm
Product Weight≤1.52kg±0.05kg
Working Temperature(-)30 ~(+) 55 degree
Working HumidityNo more than 93%, no condensate
Packing ListNLJD *1, Headphone*1, Li Battery*2, AC-DC Adapter*1, Charger*1, Electronic Sample*2, Protection Case*1

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Technology Introduction of Non-linear Junction Detector

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