• 30dbm Junction Detector With Detection Distance 120-200mm And Lithum Battery
30dbm Junction Detector With Detection Distance 120-200mm And Lithum Battery

30dbm Junction Detector With Detection Distance 120-200mm And Lithum Battery

Product Details:

Place of Origin: Jiaxing, Zhejiang, China
Brand Name: Zhejiang Zhongdeng Electronic Technology
Model Number: ZD-JD007
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Detail Information

Working Frequency: 2.4GHz Detection Distance: 120-200mm
Receiving 2nd Signal Harmonic Range: 4.808-4.944GHz Receiving 3rd Signal Harmonic Range: 7.212-7.416GHz
Battery Type: Lithum Battery
High Light:

30dbm Junction Detector


120mm Detection Distance Junction Detector


Lithum Battery Nljd Detector

Product Description

2.4G Junction Detector With detection distance 120-200mm and 30dbm Receiving dynamic adjustable range




In order to ensure security for secret departments and detect electronic device hidden in walls, floors, ceilings, lamps, furniture or containers, our company develops ZD-JD007 junction detector.Due to the high sensitivity -135dbm of the detector, where these electronic devices are transmitting singers or not, they are detected and alerted by display, vibration and sound prompts. Then detector can focus on hidden targets. It also applies lithum battery with long work time.



Application scenes


1. Confidentiality Inspection of Commerical Organizations

2. Cheating Prevention In Education Industry Examination

3. Government Secrecy Department such as public security, justic, prisons, education, troops, and so on.

4. Security inspection of large scale activities


Product Characteristics

  • Strong semiconductor detect ability: With the 2nd and 3rd harmonic signal strength detection technology, it can quickly and effectively identify device and semiconductor materials inside it.
  • High sensitivity: The junction detector is equipped with built-in high gain antenna. It has long detection distance especially for SIM card devices. To ensure secret, mobile communication equipment will be detected quickly.
  • Flexible operation: The interface is simple and intuitive, with few buttons and easy manual operation.
  • Friendly interaction interface: Support visual graphical interface, bright display of power emission level, 2nd and 3rd harmonic graphics, easy to operate.
  • High cost performance: The most cost-effective, cost saving and excellent performance in the world.
  • Low false alarm rate: The built-in nondestructive detection algorithm greatly improves the detection ability, and the false alarm rate is very low.
  • Safety and reliability: The characteristics of equipment meet the requirements of electromagnetic radiation and are absolutely safe for human body.



Paramter Technical index
Product working frequency band


Receiving sensitivity Less than -135 dbm
Working voltage  7.4V
Frequency range  2.404-2.472GHz
Receiving 2nd-3rd signal harmonic range



Maximum transmit power  4W(EIRP)
Receiving dynamic adjustable range  30dbm
Battery working time

 4.5h(Typical mode)

(Typical mode means 30% transmitting power, low receiving gain, and no vibration)

Battery type Lithium battery
Charging time


Through type-c interface

Interactive interface The screen displays the intensity of the received harmonic signal. Audio prompts are supported and headphones can be connected. Supporting vibration tips.
Detection distance

TF card: 120-200mm

Mobile phone: ( Iphone7: 80-120mm   Huawei P30: 150-200mm)

Product size 750(L)*114(W)*108mm(H)
outer box size 700(L)*330(W)*180mm(H)
Product weight 1.5Kg±0.05Kg
Operation temperature Optional battery:-30℃~55℃
Operation humidity No more than 93%, no condensate




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