AJAX (38205.37.WH1) ReX Intelligent Radio Signal Range Extender - White Installation Indoors Compatibility: Hub(2G)/(4G) Jeweller, Hub 2(2G)/(4G)Jeweller, Hub 2 Plus (2G)/(4G) Jeweller ,Hub Hybrid (2G)/(4G)Jeweller ,Hub Plus Jeweller, ReX 2 Jeweller, ReX Jeweller Communication range: up to 1,800m Number of ReX Jeweller Connected: up to 5 Number of Devices connected: up to 199 Features: Two-way communication; Advanced anti-sabotage; Block encryption featuring a dynamic key; Instant notifications; Remote control and configuration in Ajax apps. Encrypted communication: All stored and transmitted data are protected by block encryption featuring a dynamic key. Size & Weight: 163 × 163 × 36 mm, 330g Battery: Li-ion 2h Up to 35 hours of backup life. Warranty: 1 Year Official Warranty.