Boost Weak Signals Instantly
The ATNJ Smart Display GSM 2G/3G/4G Signal Booster amplifies weak cellular signals up to 32dB, ensuring stable calls and faster data speeds in remote areas, basements, or buildings with thick walls.
Premium High-Gain Antennas
Equipped with dual high-precision antennas and advanced DSP filtering technology, it eliminates interference for crystal-clear voice quality and seamless streaming.
Smart Auto-Adjusting Display
The built-in LCD screen shows real-time signal strength (0-99 levels) and automatically adjusts amplification power for optimal performance without manual tuning.
Universal Multi-Band Support
Works with all major carriers (700/850/900/1800/1900/2100/2600MHz) and compatible with 2G, 3G, and 4G LTE networks—ideal for homes, offices, warehouses, and rural cabins.
Industrial-Grade Aluminum Housing
Rugged die-cast aluminum casing with heat-resistant coating ensures durability (operating temp: -20°C to 55°C) and EMI shielding for zero signal leakage.
Plug-and-Play Setup
No software or technical skills needed—just connect the outdoor antenna, indoor antenna, and power supply for instant coverage up to 2,500 sq ft.
FCC & CE Certified
Complies with international safety standards, featuring overload protection and low radiation (<0.01W/kg) for safe long-term use.