LTE 4G 700/1800/2100Mhz 5G Repeater Tri Band 2G&3G&4G Signal Amplifier Antenna B3+B1+B28 WIFI Connection With Full kit For office/Home/Apartment

The Tri Band BA-L7DW20 tri band signal booster is developed and produced by BSD Tech in SZ China,Its working principle is the downlink amplifies the strongest cell phone signal from cell tower which is captured by the outdoor antenna,and the uplink works to receive the cellphone signal,after amplification and transmit to the cell tower.

Please check below for more tri band signal repeaters:

1,B1+B3+B8    900+1800+2100Mhz

2,B1+B3+B20  LTE800+1800+2100Mhz

3,B2+B4+B5    850+1900+1700Mhz

4,B1+B3+B28  LTE700+1800+2100Mhz

The booster coverage up to 800m2 when it is full output power.

In addition to the high-definition digital LCD,the signal booster also can be connected to WIFI, and then manage the signal repeater working status remotely through the cellphone IoT Smart Life App.

During the use of the product, you don't have to worry about the installation and quality of the product,when the device is connected to WIFI, in case of any problem, both the App and IoT management center will receive warning message, then you can go to check the problem in time,and report to us if you can not fix the problem.