› M1 Support Forum › Glass Break Tester This topic has 1 reply, 2 voices, and was last updated May 13, 2022 at 10:23 am by Mike Burrell. Viewing 2 posts - 1 through 2 (of 2 total) Author Posts May 4, 2022 at 12:39 pm #6068 JBB Which glass break tester is recommended for ELK-6040? Thank you. May 13, 2022 at 10:23 am #6090 Mike Burrell The ELK-6040 utilizes a Sentrol sensing unit, so based on that the 5709C from Sentrol/UTC would be the preferred tester. Author Posts Viewing 2 posts - 1 through 2 (of 2 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In