Model: DT-820Plus
Portable Non-linear Junction Detector (NLJD) to Detect Electronic Devices
General Configuration:
√ Working Frequency Range: 2.404GHz-2.472GHz
√ Receiving Harmonic Range: Auto
√ Receiving Sensitivity: Less than -125dBm
√ Battery: Li Battery,working>4H
√ Interactive Interface: LCD, Audio, Vibration
√ Detection Distance: GPS module @ 400-500mm; Mobile Phone @ 180-220mm; SIM Card @ 90-120mm
√ Extendable Pole: 80-136cm
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Description:
DT-820Plus is an upgraded model of DT-820 with over 1m telescopic rod. It is a professional portable non-linear junction detector at good quality and performance. DT-820Plus NLJD can detect electronic devices hidden in walls, floors, ceilings, lamps, furniture or containers, whether they are transmitting signals or switching on or off. Once there is alarm, operator will be alerted by display, sound and vibration. This is a top-level TSCM equipment. This nljd detector can be used to find target invisible equipment for protecting organizations and individuals Private information. DT-820Plus portable non-linear junction detector comes with an extendable pole for longer-distance inspection such as ceilling surveillance.
Technical Principles:
This portable Non-linear 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 devices with non-linear junctions.
Application scenarios:
DT-820plus portable non-linear junction detector 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: Detecting hidden cameras and surveillance devices such as recording pens, cameras, etc. in residential buildings and hotels.
Features:
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High Positioning Accuracy: The NLJD uses 2400MHz(2.4G) radio frequency detection technology with high precision positioning characteristics.
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High Semiconductor Recognition Ability: The detector’s built-in spectrum analyzer supports second and third harmonic detection, can quickly and effectively identify devices containing semiconductors.
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High Sensitivity: Especially for SIM card devices with high sensitivity, to ensure that secrets, mobile communications equipment can be quickly detected.
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Low False Alarm Rate: Our built-in nondestructive detection algorithm greatly improves the detection capability, and the false alarm rate is very low.
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High Safety and Reliability: Meets the requirements of electromagnetic radiation and absolute safety to human body.
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Flexible Operation: supports automatics transmission power and manual mode selection, easy to operate manually
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User-friendly Operation Interface: Supports OLED visual graphical interface, vivid display of power emission level and second and third harmonic graphics, easy to operate.
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High performance/price rate: DT-820Plus Portable Non-linear Junction Detector comes with the world most cost-effective, cost-saving and excellent performance. It can meet the general requirements for many projects.
Specifications:
| Parameter | Technical index |
| Product working frequency band | 2.4GHz |
| frequency range | 2.404 GHz - 2.472 GHz |
| Receiving 2nd~3rd Harmonic Range | 4.808 GHz-4.944 GHz, 7.212 GHz-7.416 GHz |
| Pulse mode transmit power (maximum) | 0~1W |
| Receiving sensitivity | Less than -125dBm |
| Receiving dynamic adjustable range | 50dB |
| Battery Working Time in Maximum Power Pulse Mode | 4.5H |
| Battery type | Replaceable lithium battery |
| Charging time | Fast charging 3H |
| Interactive interface | LCD Display Receiving Harmonic Signal Intensity |
| Audio prompts are supported and headphones can be connected. | |
| Supporting Vibration Tips | |
| Detection distance | >6M, C-class product complying with GA1236-2015 standard |
| Product size | 370mm(L)*96mm(W)*38.5mm(H) ±5mm |
| Protection Case Dimension | 355mm * 295mm *165mm ±10mm |
| Extendable Pole | 80-136cm |
| Product weight | 0.6kg |
| working temperature | -20℃ to 55℃ |
| Working humidity | Less than 93%, no condensate |
| Product size | 365(L)*110(W)*65mm(H) |
| Outer box size | 580(L)*300(W)*150 mm(H) |
| Product weight | 0.6kg |
| working temperature | -20C ~45 C |
| Working humidity | No more than 85%, no condensate |
If you are looking for a top-quality non-linear junction detector, DT-820Plus NLJD is highly recommended. It is portable with light weight, already applied in many projects abroad.
A glance at DT-820Plus Portable Non-linear Junction Detector
DT-820Plus Portable Non-linear Junction Detector User Guide
Unboxing of DT-820Plus Portable Non-linear Junction Detector
Technology Introduction of Non-linear Junction Detector (NLJD)
DT-820Plus Comarison with similar NLJD model in the market
| Model | DT-820Plus | Star 24 | EDD-24T |
|---|---|---|---|
| Brand | iSecus | Lornet | JJN Digital |
| Country of Origin | China | Russia | United Kindom |
| Frequency | 2.404GHz – 2.472GHz | 2.406GHz – 2.414GHz | 2G-3G |
| Receiving Sensitivity | ≤-125dBm | ≤-110dBm | ≤-125dBm |
| Power Ouput | 1W (Max.) | 10W | 1W |
| Operating Time(Pulse) | ≥4 Hours | ≥3 Hours | 4.5 Hours |
| Alarm Alert | Screen Alert, Sound, Vibration | Screen Alert, Sound | Screen Alert, Sound |
| Rod Length | 80-136cm Extendable | 43-97cm Extendable | None |
| Equipment Weight | 0.5KG (Without Rod) | 1.0KG (Without Rod) | 0.7KG |
| Working Environment | -20℃-50℃ | 5℃-40℃ | 0℃-50℃ |
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