A portable signal blocker device with multiple fans inside a metal case, with visual indicators for 5G, 2G, 3G, 4G, and WiFi frequencies.
mobile phone wifi blocker video
cellphone blocker with multiple frequency on a white background
Black phone blocker with fans on a white background
Classroom with a high-efficiency phone blocker to prevent cheating, featuring text about creating a fair exam environment.
cell phone signal blocker
cell phone blockers

120 W Ayarlanabilir N-14 Yönlü Cep Telefonu Sinyal Kesici 2/3/4/5G/WIFI/GPS/Bluetooth Sinyal Engelleyici – Sınavlarda Kopya Önleme İçin

$1,500.00

Effective Anti-Cheating Cell Phone Blocker in Exam Halls

  • Full-Band Coverage: Instantly blocks 2G–5G, Wi-Fi, Bluetooth & GPS to create a secure, no-communication exam zone.
  • Directional Blocking: Precisely disrupts wireless signals, ensuring a fair and fully secure testing environment.
  • Adjustable Power & Range: Flexible 8–100m coverage adapts to any exam hall or room size.
  • High Power 120W Output: Covers large exam halls with stable, no-blind-zone protection.
  • Continuous 24/7 Operation: Advanced aluminum radiator and silent fans support up to 24 hours of uninterrupted use, keeping exams protected throughout long sessions.
  • Customizable Frequency Bands: Fine-tune blocking frequencies to meet local standards.
  • Factory-Direct Reliability: 21 years of R&D, certified quality, and global technical support.
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Overview

Güvenilir Bir Üreticiden Güvenilir Çözümler
Sınav salonlarında elektronik kopyanın artışıyla birlikte, sinyal engelleyiciler sınav bütünlüğünü korumak için vazgeçilmez bir araç haline gelmiştir. Biz, bilgi güvenliği koruma alanında uzmanlaşmış bir üreticiyiz ve araştırma-geliştirme alanında 21 yıllık tecrübeye sahibiz. Cihazlarımız güvenilir kalite ve rekabetçi fiyatlarıyla tanınmakta olup, sınav ortamları için güvenilir bir tercih sunmaktadır. Özelleştirilebilir talepleriniz veya güvenilir bir sinyal engelleyici üreticisi arayışınız varsa — bizimle iletişime geçmekten memnuniyet duyarız.

Dikkat Edilecek Hususlar

  1. Gerçek engelleme mesafesini etkileyen faktörler: sinyal gücü, baz istasyonu mesafesi, telefon formatı, engeller, kurulum yüksekliği ve özellikler.

  2. Uzun süre çalıştıktan sonra cihazın ısınması normaldir. Sıcaklık çok yükselirse gücü kapatın ve yerel bayinizle iletişime geçin.

  3. Normal kurulum yüksekliği 1.8m～3m’dir, cihaz ile hedef alan arasında engel olmamasına dikkat edin.

SSS

  1. Ürünleriniz hangi frekans bantlarını engelleyebilir? 5G destekli mi?
    Evet. Tüm spektrum engellemesi: 2G/3G/4G/5G, Wi-Fi 2.4G/5.8G, GPS L1–L5, Bluetooth, UHF/VHF, LoRa vb. Özelleştirme mümkündür.

  2. Her bant için çıkış gücü ayrı ayrı ayarlanabilir mi?
    Evet. Her modül bağımsız olarak ayarlanabilir, bu da engelleme yarıçapını kontrol etmeyi, belirli bantları güçlendirmeyi ve enerji tasarrufu yapmayı sağlar.

  3. Güçlü sinyal ortamlarında (<200m baz istasyonu) etkili mi?
    Evet. Yüksek güçlü RF modüller ve yüksek kazançlı antenler sayesinde yakın baz istasyonlarında bile etkilidir.

  4. Projeksiyon cihazı veya mikrofon gibi diğer cihazları etkiler mi?
    Hayır. Yalnızca kablosuz iletişim frekanslarını hedefler, kablolu cihazları etkilemez.

  5. Her frekansın çıkış gücü ayarlanabilir mi?
    Evet. Her modül bağımsız olarak ayarlanabilir, engelleme mesafesi 8–100 m arası kontrol edilebilir.

  6. Birden fazla omnidirectional engelleyici birbirini etkiler mi?
    Hayır, doğru kurulumla etkilemez. Çakışmayı önlemek için optimize edilmiş yerleşim sunuyoruz.

  7. Oda dışında ek ekipman kurulması gerekiyor mu?
    Genellikle hayır. Ancak güçlü dış baz istasyonlarına yakın ortamlarda ek dış ünite önerilebilir.

  8. Kurulum bina yapısına zarar verir mi?
    Hayır. Duvarlara, tavanlara veya sütunlara monte edilebilir. Önerilen yükseklik 2.5–3m’dir, düzen esnektir.

  9. Cihaz 24/7 çalışabilir mi? Aşırı ısınır mı?
    Evet. 24/7 sürekli çalışmaya uygundur, 6 bölgeli soğutma ve soft-start devresi ile donatılmıştır.

  10. OEM/ODM desteğiniz var mı?
    Evet. 21 yılı aşkın deneyimimizle, güç seviyeleri, bantlar, gövde yapısı ve protokoller toplantı odaları, cezaevleri, askeri bölgeler, araçlar vb. için özelleştirilebilir.

Specification

Performans ve Metrikler

KategoriPerformans ve Metrikler
Boyutlar435 × 293 × 130 mm (Uzunluk × Genişlik × Yükseklik)
Ağırlık7,2 kg (ana ünite)
Kalkanma Menzili8–50 m (baz istasyonunun sinyal gücüne bağlı olarak)
Güç Kaynağı ve TüketimAC 110–220V / DC 24V / 20A, Tüketim: 480W Entegre çift anahtarlamalı güç kaynağı
Çalışma Sıcaklığı-10℃ ila +55℃
Depolama Sıcaklığı-20℃ ila +60℃

Elektriksel Parametreler

KanalEngellenen SinyallerÇalışma FrekansıFrekans Aralığı Çıkış GücüKanal Çıkış Gücü
CH1Broadcast 5G/Mobile 5G758-803 MHz40 dBm5 dBm/30KHz(min)
CH2CDMA/Telecom 2G/4G851-894 MHz40 dBm5 dBm/30KHz(min)
CH3GSM/Mobile 2G 4G/Unicom 4G925-960 MHz40 dBm5 dBm/30KHz(min)
CH4DCS/Mobile 2G 4G/Unicom 4G/Telecom 4G1805-1990 MHz40 dBm2 dBm/30KHz(min)
CH5PHS/Mobile 2G 4G/Unicom 4G/Telecom 4G1805-1990 MHz40 dBm2 dBm/30KHz(min)
CH63G/Mobile Unicom Telecom 3G 4G2010-2170 MHz40 dBm2 dBm/30KHz(min)
CH73G/Unicom Telecom 3G 4G2110-2170 MHz40 dBm2 dBm/30KHz(min)
CH84G1/Mobile 4G(dahili kapsama)2300-2400 MHz40 dBm2 dBm/30KHz(min)
CH9WIFI2.4G/WIFI5.8G2400-2483 MHz/5725-5850 MHz37 dBm2 dBm/30KHz(min)
CH10Mobile 4G 5G2500-2600 MHz39,5 dBm2 dBm/30KHz(min)
CH115G1/Telecom 5G3300-3500 MHz39 dBm2 dBm/30KHz(min)
CH125G2/Unicom 5G3500-3800 MHz39 dBm2 dBm/30KHz(min)
CH135G2/Mobile 5G(dahili kapsama)/WIFI5.2G4800-4960 MHz/5150-5350 MHz37 dBm2 dBm/30KHz(min)

Excellent Experience—Many User Reviews

Cumulative shipments of over 5,000,000 units, with continuous positive reviews from customers

Grace Mitchell

Germany

This is our second time ordering the the cell phone blockers from this company, and we are very satisfied. The shielding performance is excellent, and both the industrial design and cooling system are impressive. Mr. Chen is always friendly and replies quickly—often within an hour, despite the time difference. This supplier has our full trust. Confidently recommended for any organization needing high-quality signal blockers.

James Walker

Indonesia

We've been using the N-14-120W signal blockers for our examination venues for years, and the performance is excellent every time. Shipping to Indonesia is surprisingly fast, often ahead of schedule. The supplier is very reliable, always quick to answer our technical questions and adjust settings for different venue sizes. They even confirm the specifications before shipping. The equipment is always well-packed and arrives in perfect condition. 100% RECOMMENDED! Ask for Chen—he provides fantastic support.

Mia Thompson

Canada

The N-14-120W blockers we ordered work perfectly! 📶 The shielding is strong and stable, and the build quality is excellent. Communication with the technical team was smooth and professional, making the whole process easy. We also received a performance report before bulk order, which gave us full confidence. Will definitely order more for our meeting rooms. Thank you!

Isabella Moore

United States

I'm very satisfied with the DescBoost cell phone blockers we deployed. Mr. Chen is an excellent support engineer—helpful, professional, and very attentive to our site requirements. The equipment performs flawlessly in our conference rooms, and shipping was fast. Highly recommend working with him, and we will definitely purchase again.

Isabella Moore

United States

I'm very satisfied with the DescBoost cell phone blockers we deployed. Mr. Chen is an excellent support engineer—helpful, professional, and very attentive to our site requirements. The equipment performs flawlessly in our conference rooms, and shipping was fast. Highly recommend working with him, and we will definitely purchase again.

Lily Harris

United States

Delivery was slightly delayed due to customs, but once we received the N-14-120W units, we were impressed by the build quality. The heat dissipation and signal stability are excellent, and performance exceeded expectations. The devices are professional, durable, and ideal for our secure facilities. Tested under full load, and they performed perfectly. Very satisfied and planning a larger order. Highly recommended supplier.

Emma Richardson

United States

The shielding effectiveness, build quality, and packaging are excellent. The devices look professional and work very reliably. Planning to make them our main supplier for all secure meeting venues. 💖

Lucy

United States

Just received the blockers and they all look robust and perform beautifully 💪 The signal blocking is always consistent, and the pricing is very fair. This supplier has been reliable every time—highly recommend! 🤩

Olivia Evans

Germany

The N-14-120W units work great, and the directional adjustment feature is very useful. The engineer Chen was very professional, offered excellent advice, and helped us optimize the antenna setup for maximum coverage. Extremely happy with the result and will order more if needed. Thank you!

Sophia Lee

United States

Very satisfied with the K-14-80W blockers—will be placing another order soon. They work perfectly in our training centers. We even customized the frequency ranges to match local networks, making the solution feel unique and tailored. 🙂

Razi Riz 

Vietnamese

We needed a reliable solution to block unauthorized communications used by inmates to smuggle contraband or coordinate escapes and to prevent sensitive information leaks during meetings. This signal blocker exceeded our expectations! Not only is it high-powered, but it also allows precise adjustment of power and frequency. Its unobtrusive design delivers exceptional effectiveness. Once activated, there are no signal blind spots and no risk of information leaks—exactly what we needed for enhancing prison security.

John Israel 

Canada

We installed this signal blocker throughout our prison, and it immediately enhanced our security measures. Its precise, adjustable power settings let us customize coverage exactly where it’s needed. By blocking all mobile and wireless signals, we have effectively reduced the risks of attacks and violence. It has become an indispensable tool for protecting the integrity of our facility.

Johnson Lam 

South Africa

As a prison security officer, I had doubts at first about how effective the signal blocker could be.However, this high-power phone blocker has exceeded all my expectations. Even near strong cellular base stations, it consistently maintains full effectiveness. It’s perfect for supporting comprehensive, multi-layered security protocols. Truly a professional-grade solution tailored for correctional facility security.