Lockdown Safety Signals, LLC, 111 Avon Ave., Waterbury, CT 06708. Provider of security and signaling devices to educational institutions used during lockdown situations. Patrick A. Hamel 203-509-5926. Rick Crespo 203-558-2472. Neil Crespo 203-558-5140.

Lockdown Safety Signals, LLC, 111 Avon Ave., Waterbury, CT 06708. Provider of security and signaling devices to educational institutions used during lockdown situations. Patrick A. Hamel 203-509-5926. Rick Crespo 203-558-2472. Neil Crespo 203-558-5140.

Lockdown Safety Signals, LLC, 111 Avon Ave., Waterbury, CT 06708. Provider of security and signaling devices to educational institutions used during lockdown situations. Patrick A. Hamel 203-509-5926. Rick Crespo 203-558-2472. Neil Crespo 203-558-5140.

Lockdown Safety Signals, LLC, 111 Avon Ave., Waterbury, CT 06708. Provider of security and signaling devices to educational institutions used during lockdown situations. Patrick A. Hamel 203-509-5926. Rick Crespo 203-558-2472. Neil Crespo 203-558-5140.