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Recent exam security reports from Morocco World News (2025) highlighted the government’s deployment of mobile signa...
21
Year
99%
Inspection Rate
1995+
Custom Customers
4987m²
Factory
97%
Client Satisfaction
WHO WE ARE
Factory-direct Signal Jammer Manufacturer
Unlike trading company, Dexinkang is a professional factory located in Shenzhen, China. With 21 years of industry experience, we specialize in the research, development, design, production, and sales of signal control and wireless security equipment.
Our product includes examination security equipment, handheld metal detectors, and wireless signal detection devices for government, military, correctional, educational, and commercial applications.
Backed by our own factory, experienced R&D team, and OEM/ODM capabilities, we provide customized wireless solutions and long-term manufacturing support for global partners.
About UsVisit Our Factory in China!
We believe in transparency. If you are serious about a large-scale OEM/ODM project, come visit us. For qualifying orders, Dexinkang can reimburse eligible flight and hotel expenses. See the production lines, meet the team, and discuss your project face-to-face.
Factory Tour
Visit Us & We Cover Your Travel Costs
Travel Expenses:
Eligible reimbursement can be reviewed for confirmed qualifying projects.
Location:
Guangdong Province, China
signal jammer Manufacturer
21+ Years of Wireless Security Experience | OEM & ODM Support
✔ Stable Coverage Where Standard Systems Fail Near Base Stations
✔ 360° Signal Coverage Without Blind Spots
What We Can Offer
Custom solutions, stable manufacturing, and professional support for distributors, integrators, and security contractors worldwide.
Professional Security Solutions
Tailored solutions for examination centers, meeting rooms, correctional facilities, military sites, and other secure environments.
OEM & ODM Services
Custom branding, frequency configuration, packaging, housing design, and project-specific requirements.
Technical Support
Professional guidance for deployment planning, installation, troubleshooting, and project implementation.
Fast Response
Quick assistance for quotations, product selection, technical questions, and delivery inquiries.
Project Experience
Extensive experience supporting schools, government agencies, military facilities, and security projects worldwide.
Trusted by Global Security Partners
Canada Customer Project
Reviewed customized frequency options and device recommmendations with a Canadian client for an upcoming school and examination security project.
African Customer Project
Partnered with a African security contractor to supply high-performance cell phone signal control devices with controlled coverage, installation guidance, and project-specific frequency requirements.
UK Customer Project
Worked with a UK customer to provide high-power wireless signal scrambler solutions for confidential facilities, ensuring stable performance, and reliable project deployment.
Our Certifications & Audits
Explore Our Customer Success Cases
Background of the Examination Room Signal Jammer Project
Xide County, Liangshan Yi Autonomous Prefecture, Sichuan P...
1. Background of the 5G Exam Signal Jamming Project at Hefei University of Technology
Hefei University of Technolog...
Project Background
Shanxi Jinzhong Prison, established in 1905 and known through history under sev...
Sku
E-12 100W
N-14 120W
K-16 120W
Type
Portable/Desktop
Portable/Desktop
Portable/Desktop
Antenna
Omnid...
FAQs
Q1 Are you a factory or trading comoany?
We are an OEM ODM factory located in 310,No.12 Tongfuyu Industrial Park,Heping Community,Fuhai Street,Bao'an District,Shenzhen,518126, China.Welcome to us.
Q2 How to place an order?
A. Contact us by email or whatsapp to inform us about your requirements and product application.
B. We offer price according to your specific needs
C. Customer agrees to offer and makes payment
Q4 What is the typical production lead time?
Small Orders（1–10 Units）
7–10 Days
Suitable for sample evaluation, office use, meeting rooms, and small-scale deployments.
Project Orders（10–100 Units）
10–15 Days
Suitable for schools, examination centers, offices, and multi-room installations.
Bulk Orders(100–500 Units)
15–25 Days
Designed for distributor procurement and large-scale deployment projects.
OEM & Custom Orders(500+ Units)
25–40 Days
Supports custom frequency bands, private labeling, custom packaging, and project-specific configurations.
Q5 Can samples or testing units be provided before bulk orders?
Yes. Customers often want to verify coverage performance, environmental compatibility, and installation suitability before large deployments. Sample units and testing support can be arranged depending on project scope and configuration.
Q6 Can you customize frequency bands or power configurations?
Yes. Our cell phone scrambler support common 2G / 3G / 4G / 5G Cellular Networks and WiFi 2.4GHz & 5GHz frequencies. For special projects, we can customize frequency combinations, output power, and antenna configurations based on your country, application, and coverage requirements.
Available Frequency Options:
- Bluetooth
- GPS / GNSS Bands
- UHF / VHF Radio Bands
- ISM & Other Wireless Communication Frequencies
Q7 How about the shipping method?
DHL/UPS/TNT/Fedex and other air freight and sea freight are all workable. In a word, we could make any deliveries you wanted.
Q8 What if items are damaged during shipping?
Our Damage Protection Policy
All cell phone scramblers are individually inspected and securely packed before shipping. We use reinforced cartons, protective foam, and discreet packaging to reduce damage risk during international transportation.
Resolution Options: Free replacement for confirmed shipping damage | Partial refund | Insurance claim assistance
Safe Delivery Support: If any issue occurs during delivery, our team will assist with verification and provide a practical solution as quickly as possible.
✅ Proactive Quality Guarantee: Every order is tested before shipment to help ensure stable performance and reliable operation upon arrival.
Q9 Will the device still work near strong base stations or high-signal areas?
Yes. In high-interference environments such as urban buildings, schools, or facilities near cellular towers, ordinary devices often suffer from weak coverage control and unstable performance. Our signal scrambler are designed with high-power RF modules and optimized antennas to maintain stable wireless control even under strong external signals.
Q10 Can the coverage range be adjusted for different room sizes?
Yes. Different environments require different coverage strengths. Output power can be adjusted by band to avoid excessive spillover, weak coverage, or unstable signal control in classrooms, meeting rooms, and controlled areas.
Q11 Does it support 5G and the latest wireless frequencies?
Yes. Modern environments no longer rely only on traditional mobile bands. Our solutions support multi-band wireless control, including 2G/3G/4G/5G, WiFi, Bluetooth, and other commonly used wireless frequencies depending on configuration requirements.