Profile: Guangdong Amplitec Tech Development Co., Ltd specializes in manufacturing repeaters. Our tri-band signal booster features LCD display of operating figures. Real time isolation check and alarm. Self oscillation elimination, auto degrading of output power in case of insufficient isolation detected. It is idle turn-off, auto turn-off of uplink while no active users in the coverage, and lowering interference. Ceiling antenna is mainly used in such indoor environment as meeting rooms, hotels and restaurants, and business buildings. Usually, it is installed on the ceiling of each floor in the large building where mobile signal needs to be enhanced.