Viking BLK-4 LED Security Strobe Beacon with Weatherproof Single Gang Box Cisco so you know it's built

so you know it's built to last

Self discoverable

Low frequency roll-off filter switch reduces low frequency noise caused by ambiance

Rack mount ears provided (1 pair) for 1RU 19" rack mount and small ears (1 pair) for optional table or wall mount

Axis Edge Vault

Viking BLK-4 LED Security Strobe Beacon with Weatherproof Single Gang Box Cisco so you know it's builtDurable polycarbonate lens High output long life LED technology Four programmable flash patterns: Single Flash,Double Flash,Quad Flash,Flicker Flash The BLK 4 provides high visibility indication of analog line status through a high powered LED strobe and or beacon visual indicator. The BLK 4 is the ideal solution for the hearing impaired and can be used equally well in loud warehouses or factories, where ringing phones cannot be heard. Alternatively,