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Item specifics
  • Brand Name: Kan.Do
  • Model Number: L950m
  • color: Blue
  • Place of Origin: Guangdong, China (Mainland)
Product Description
"Any dispute / Direct negative feedback"  before contact means "Buyer Rubbish " !! And not welcome such buyer !! Please go away !! ( Because business is cooperation ,not fight each other ) .

If protection time is running over ,please contact to extend time ,
if any problem found ,please contact to solve by a friendly way .



******Important Note ( please read , and please read all descriptions carefully ) ************:
To let a booster work it needs conditions :

1. please be sure that signal outside of your house is good enough to enable booster to work , what good signal is:

a). stand there to check if you can make fluent call or not,if can ,then you buy ,otherwise please dont buy ;
b). Put your phone there to check its signal strengthness :
Android : setting-about phone-status-network ,dbm display shall be at -60dbm to -75dbm around ;
IOS : dial *3001#12345#*, dbm display shall be at -60dbm to -75dbm around ;

-80dbm to -100dbm means bad,so please dont buy

2. Please be sure the place where you are going to install is GSM900MHZ ,operator also use DCS1800mhz for 2G network, please check to clarify .
3. Install them correctly to avoid interference ( auto osillation ) with walls between indoor & outdoor antenna, when interference exist ,LCD will display full signal bar or signal LED normal on, but phone can not make call .

For avoiding unhappiness ,please do not buy before you are clear about the above .

This kits is cheap with lower gain external antenna and high loss cable , request good signal outside of your house . If you are not confident ,plesae choose other kits in our store which has panel antennas and 50-5 cables .


Selling point of product :

1.  Host Max. 500 square meters suitable ( the kits here is for only 10-100 sq meters if there is not any walls or obstacle ,if you have more rooms ,it may work for 1 room only ) .
2.  GSM booster;
3.  900mhz booster;

4.  LCD display function to display signal receives.
5. With 10 meters of cable + outood and indoor antenna

GSM mobile phone signal amplifier,cellphone repeater/booster,


A. Booster :

Voltage :  110-220V AC or DC5V 1A
Frequency range : 


                          890MHz--915MHz(Up link)
                          935MHz--960MHz(Down link)

Gain :    

 Uplink ≥50dBi         Donwlink ≥55dbi
Output power :  
                          Uplink:   17dbm

                          Donwlink :17dbm      

Outdoor signal strength request for outdoor antenna: at least -55dbm around ;
If you can have a android phone ,you can use it to test your signal strengthness as below :

For this product ,it will request signal strengthness not higher than -55dbm , if your signal strenght is worse to -55dbm ,it may work not good for you or not amplify signal for you .


PS.: -65 ,-70 and -80 dbm is worse signal than -60dbm ,-55dbm is better signal than -60dbm .

Impedance : 50Ω  ;
Seclusion  : >70db
Ambient temperature:-10oC--50oC

Configuration:   5V/ 1A prower

Size : 
Net weight : 0.22kgs .

Gross Weight  :0.33Kg 

Signal coverage area :Max. support 300-500 sq meters. it will be different according to your using condition and the indoor antennas which you are using .

B.  Outdoor Antenna :

1. Frequency:806-960Mhz
2. Bandwidth:154MHz
3. Gain:5dBi
4.  Seclusion:≤1.5
5.  Impendance:50 Ω
6. Antenna height : 35cm ( reference only,maybe a little difference with the real ) 


 Below is outdoor antenna+cable .


C . Indoor Antenna : 

Built-in antenna ( as shown in title picture , the white one )  ;
5 dbi ;
Length :15 cm around ;


D. Cable :

1.  Coaxial cable ( 50-3 ) ;
2.  Impendance : 50Ω, RG :3 

3.  Length : 10 meters (  fixed on outdoor antenna ) ;
F/N  connector included ( for one set only ). 
5.  420g / 10 Meters ( for reference only ) .
If you need more long cable , please contact .

Note : 
1. To use this product to enlarge your signal, the outdoor signal where put outdoor anetenna shall be as good as possible , the signal in your mobile phone shall be full and must be very stable for talking  . The product will not work good if our outdoor signal is not good or bad .

2. We will not bear any responsibility of your outdoor antenna signal is not good .
And if your outdoor signal is not full , for example, the full signal shown in your phone is 5 bars, and you can only have  it 4 bars or less , please think it over again


Note :
This kits ok for 50 sq meters around in open space ( home use as sitting room ) ,if you have different rooms , we only promise 1 antenna for 1 room, 2 antenna for 2 rooms   .



Problems and solutions ( important ) , please read :

All booster will be tested before shipping to ensure quality , if you dont know any about booster and installation please start from 0 as below .

1. After power connected ,if LCD does not display or power LED is not on ,it means booster is defective ,kindly choose a friendly to solve it ,we accept to reship or refund. Andy dispute or negative will cause you on black list and an uncooperative solution ;

2. After you connet cables and antenna onto booster ,Lcd display 1-3 bars, you need to change your external antenna to a better place to gain stronger signal, if you use small pin antenna ,please upgrade it to a panel or a yagi ; If you can not find a place with good signal to enable booster with full bar display ,it means your outdoor signal is too bad ,booster will not work . So please kindly contact for a solution to return .


3. After you connet cables and antenna onto booster ,Lcd display full bar or signal LED is on ,but phone can not make call , it means big interference ( not booster quality problem ) which cause booster dead called auto osillation , so you need ( indoor and outdoor antenna can not see each other ) :
1). Use longer cable to enable outdoor antenna far away from booster and indoor antenna ;
2). Face outdoor and indoor antenna to different direction;
3). Get one or 2 walls between outdoor antenna and indoor antenna to ensure they are well insulated .
4). Check with your operator to ask what frequency are adopted in your area to ensure your booster matchs ( operator will use 900mhz in some area and use 1800mhz in an other area ) .

Detailed problems and solutions  :

If you still can not solve it yourself , you can friendly talk choose return or refund,
any dispute or negative mean buyer Rubbish !!



Below model for GSM900mhz 2G network ( IGC and ALC function ) may work under conditions :
1. bad outdoor signal at -80dbi to -85dbi around ;
2. No need wall to 100% insulate indoor and outdoor ( but if both antennas are too close ,it will not work too ) ,

Above models is only possible to work if outdoor signal is not good (-80dbm) ,does not mean 100% to work if really bad outdoor signal ( because a booster will take many conditions ) .

When you buy them it means that you just want to take try ,if does not work ,please be friendly to solve. If you are going to direct dispute or negative, please dont buy .





Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 12cm x 12cm x 12cm (4.72in x 4.72in x 4.72in)
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Packaging Details
  • Unit Type: piece
  • Package Weight: 1.0kg (2.20lb.)
  • Package Size: 12cm x 12cm x 12cm (4.72in x 4.72in x 4.72in)
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