CIU Co., Ltd.

CIU Co., Ltd. is a Taiwan based electronics engineering company, specializes in providing high-end electronic communication and investigation equipment, for the security community around the world. Our engineer team has more than 20 years of experience in producing security and counter-surveillance equipment for critical missions and applications and the engineer team can provide the most professional solutions for each client. Our mission is to provide high-quality, comprehensive security products and solutions for Home, Law enforcement and Intelligence agencies worldwide. Each product of CIU is working closely with specialist users worldwide and each product is mostly designed and “Made-in-Taiwan”. We have extensive experience in designing customized products and providing complete solutions for almost any security requirement. According to government requirements, we have successful designed CEN-02 Skysafe VIP SecureCall which is a Military-Grade Encryption Chip, the Pro3 Police UV IR Detector Camera, CTR-540 Long Live Police GPS Tracker and Vehicle Cell Phone Jammers. If you have any ODM/OEM inquiries, please contact with us, we look forward to discussing your specific requirements in details.

Customized 3G 4G LTE Cell Phone Detector Anti-Cheating in Taiwan - CIU Co., Ltd.

This handheld cell phone detector is a high speed scanning receiver utilizes a multi-band omni directional antenna system allowing security personnel to locate nearby cell phones in either standby mode or during active voice, text or data RF transmissions. The handheld mobile phone detector helps you to locate illegal cell phone, gps tracker.
This Customized 3G 4G LTE Cell Phone Detector Anti-Cheating in Exam can sense the presence of an activated mobile cellphone from a distance of one and-a-half metre. So it can be used to prevent use of mobile phones in examination halls, confidential rooms, etc. Check with CIU Co., Ltd. for custom 4G phone detector.
LTE 4G 3G  2G GSM Wi-Fi Bug Mobile Phone Detector Anti-Cheating in Exam

RFD-10EU

LTE 4G 3G 2G GSM Wi-Fi Bug Mobile Phone Detector Anti-Cheating in Exam for Europe

The RFD-10EU LTE 4G 3G Mobile Phone Prison Detector is a handheld multiband cellular signal detector for 4G, 3G and GSM Wi-Fi device. RFD-10EU meets and exceeds the expectations required of cell phone detectors dealing with the latest European mobile uplink bands. It is design to detect signals from mobile phones, smartphones, vehicle trackers, GSM Wi-Fi bugs and covert 3G/4G camera. All signals strength display on the monitor. The RFD-10EU LTE 4G 3G Mobile Phone Prison Detector not only helps to locate contraband or unauthorized phone use during imprisonment, test taking but also can detect Standby phone ... RFD-10EU detects range up to 15 meters depending on signal strength and ambient conditions.
Features :



  • Adjustable detected sensitivity

  • Audio Alarm  - Beeper or earphone

  • Signal strength indicator

  • Fine sensitivity tuner for each individual frequency band

  • Detect cell phone signal at distance over 15 meters.

  •  Can capture the sporadic up-link transmission of "Registration Request" signal.

  •  Can capture the instantaneous internet-packet-data upload signal.

  •  Can capture the spontaneous short message transmission.

  •  Can capture the voice communication

  •  It has internal memory to record the setting parameter. If the application location has not been changed, it will require no re-calibration.


Specification :

Overall Size 3.2x9x19 cm
Detection Frequency 4G 703-748 MHz   
GSM 880-915 MHz
CDMA 824-849 MHz
UMTS(WCDMA) 1920-1980 MHz
DCS 1710-1785 MHz
4G 2500 – 2570 MHz
Wi-Fi 2400MHz
Build-in Antenna Micro-strip multiband inverted-F Omnidirectional antenna
Sensitivity >-40 dBm
Dynamic Range 35dB
Detect range up to 15 meters
Built-in battery 2200mAh Single cell Li-Ion 3.8 V
Duration 16 Hours with fully charged battery
Low Battery warning <3.3V
Audio Alarm mode, Beeper speaker or Earphone(Vibration-option) Beep pitch modulated by signal strength
LCD display 4x16 alphanumerical with backlight
Weight 225 grams

Applications :


  • In sensitive/important meeting rooms to check for hidden devices
  • To check unauthorized mobile phone usage in offices, exam halls, hospitals, church, the holy place, mosque or prisons
  • In vehicles to locate hidden tracking devices
  • Security check to find the spy bug

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Contact Information
It is also useful for detecting the use of mobile phone for spying and unauthorized video transmission. Please do not hesitate to contact CIU Co., Ltd. if you are interested in our Customized 3G 4G LTE Cell Phone Detector Anti-Cheating in Exam after referring our homepage. The cusotmized handheld mobile phone detector is the most sensitive mobile phone detector for it’s size, passive receiver and specifically tuned to the RF signature of cell phones including all 2G, 3G and 4G bands. CIU’s mission is to provide cellular phone detection capabilities to both business and government institutions around the world.