The best safety supplies at the lowest prices! Sentry Safety Supply, Inc. specializes in brand name safety supplies for any job and since our humble beginnings in 1948 we have grown into a well known name in industrial safety supplies. Our staff of trained experts are available to assist you in making sure you get the job done. Sentry Safety Supply, Inc. has you covered no matter what the industry or what workers to need to make sure safety is the number one priority.