The Protech 30840211 SOLARIS 6.5 ft (2 m) Double Face TX/RX Infrared Barrier delivers wireless, solar-powered perimeter protection with bi-directional detection capability from a single tower location. Featuring 5 infrared cells on each of two opposing faces, this double face configuration is ideal for corner protection, 90° perimeter transitions, and L-shaped fence lines where two detection links converge. The integrated Connect board communicates via a secure 915 MHz LoRa mesh network with 128-bit AES encryption to the Radio Coordinator (30790020), eliminating the need for hardwired cabling between towers. Fully autonomous solar panel and battery power means no external infrastructure is required - simply bolt the tower to a concrete pad and your perimeter is operational. Anti-condensation caps protect the optical surfaces, while built-in audible and visual alignment aids ensure fast, precise TX/RX setup. With a maximum range of 328 feet (100 m) per link and comprehensive alarm outputs including intrusion, tamper, power failure, and loss of radio link, the SOLARIS 30840211 is engineered for utilities, substations, logistics yards, and other high-security applications requiring flexible corner and transition zone coverage.