28 05 44
Sleeves and Sleeve Seals for Electronic Safety and Security Pathways and Cabling
28 05 43.13
Handheld Radio
28 05 43.11
Base Station
28 05 43
Security Voice Communications Private Mobile Radio System
28 05 41.13
Directional Couplers
28 05 41.11
Splitters
28 05 41
Signal Controllers
28 05 39.19
Other Antennas
28 05 39.17
Radiating Coaxial Cable
28 05 39.15
Band Specific Antennas
28 05 39.13
Multi-band Antennas
28 05 39.11
Donor Antennas
28 05 39
Antennas
28 05 37.15
Remote Repeaters
28 05 37.13
Repeaters
28 05 37.11
Bi-directional Amplifiers
28 05 37
Security Voice Communications Distributed Antenna System
28 05 35.11
Microwave Transmission Equipment
28 05 35
Security Data Communications Wireless Transmission Equipment
28 05 33.19
Security Data Communications Media Converters