The Protech 30840119 SOLARIS 4.9 ft (1.5 m) Single Face TX Tower delivers fully autonomous, solar-powered infrared perimeter detection with 4 infrared cells in a transmitter-only configuration. Designed for seamless integration with the SOLARIS wireless mesh network, this tower features an integrated Connect board that communicates via 915 MHz LoRa radio with 128-bit AES encryption to the Radio Coordinator (30790020) - eliminating the need for buried cable infrastructure. The anti-condensation caps ensure clear optical performance in humid and temperature-variable environments, while the integrated solar panel and battery provide uninterrupted 24/7 operation without external power. With a maximum detection range of 328 feet (100 m) between TX and RX towers and comprehensive alarm outputs including intrusion, tamper, low battery, and loss of radio link, this mid-height tower is ideal for securing perimeters at utilities, substations, solar farms, and commercial facilities. Pair with matching 30840191 RX receiver tower for complete single-face coverage.