Home > Products > Antenna > LCD display GSM 3G WCDMA dual band Repeater mobile phone signal Booster 900Mhz 2100Mhz Antenna White Ready Stock
LCD display GSM 3G WCDMA dual band Repeater mobile phone signal Booster 900Mhz 2100Mhz Antenna White Ready Stock
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LCD display GSM 3G WCDMA dual band Repeater mobile phone signal Booster 900Mhz 2100Mhz Antenna White Ready Stock

Item details
SKU: 1647 KW21L 1ST
Weight: 1 kg, 0 grams
Stock: Out of stock

Brand: IOlines Network
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  • Work on GSM-900 system (G/E) / WCDMA 3G Network (3G/H/H+)
  • Easy installation and maintenance
  • Support coverage: >200 square meters if no blocking
Introduction to mobile phone signal repeater
  • Enhance mobile phone signal strength.
  • Improve communication quality.
  • Reduce cellphone radiation.
  • Prolong cellular battery life.
  • Easy installation.
Display device (for reference)
  • Signal Level for GSM
  • Signal level for WCDMA3G
  • 2017 New Design.
  • High linear design,ALC function,low interference to BTS.
  • Compact size,low consumption,easy to install,great cover.
  • Expand signal coverage where signal is weak or unavailable eg.villa,high building,countryside,parking lot ect.
  • Improve your mobile signal ,no more bad reception,no more dropping calls .
  • With LCD Display function ,can indicate the signal strenght situation when it working.
  • Dependability stand by GB6993-86 standard.
  • Compatibility of electromagnetism according with ETS300 609-4.


Technical Specifications:
Item Specification
Up Link Donw Link
Frequency Range 890MHz  ~ 915MHz

1920MHz  ~ 1990MHz

935MHz  ~ 960MHz

2110MHz  ~ 2180MHz

Power -70 ~ -40dBm/FA (1.23MHz)
Gain 60±3 Db 65±3 Db
Max Output Power +23dBm / ±3dBmTotal Power +23dBm / ±3dBmTotal Power
Impedance 50Ω
Power Supply AC 230V (AC/DC Adapter 12V dc)
Seclusion >70dB
Compact Design Indoor Use
Item Diemension 240 x 180 x 20mm
Connect Mode N connector
Ambient temperature -10°C~60°C
LCD display function

can display signal level which it receives from outdoor antenna ,
the signal bar will be full black if the signal is received very good.

Signal coverage area :

  • Support Maximum coverage area is >1000 square meters.( Depend on the area condition)
  • One indoor antenna only support for about 200 square meters. (in open space) and single floor
  • If want to make extend to support >1000 square meters or more floors, need to add more indoor antennas together with power divider / splitter / extra cables.


  • 1 x Booster / repeater main unit
  • 1 x Power supply unit
  • 1 x 10 meter Antenna cable for Outdoor Antenna
  • 1 x 3 meter Antenna cable for Indoor Antenna
  • 1 x External outdoor Log Periodic / Yagi antenna
  • 1 x ceiling mount Indoor Omni Antenna 
  • 1 x User Manual
  • Total Weight after packaging: about 3Kg++
About Us
  • Nobody is perfect, but we will try our best to serve your satisfaction and will improve from time to time. Your suggestion & understanding is highly appreciated.
  • Do not hesitate to contact us,  any enquiry, question, suggestion kindly email to us for faster reply at:
    • sales@ioline2u.com (Sales & After Sales Enquiry , Suggestion / Complaint )
    • support@ioline2u.com (Technical Support)
Shipping & Warranty
  • Default Shipping: Air Parcel (5~7 working day)
  • Item usually will be post out same day / next working day (depends on Pos laju collection schedule) if payment verified before 12pm except there is special announcement.
  • Parcel usually will be arrive within 5-7 working days EXCEPT: P.O.Box, rural area and unexpected delay by pos laju or missed delivery, addresee unreachable, etc.
  • 7 Days against manufacturer defect