These options make the XtraD Gate Lock suitable for a wide range of gated access control environments, including those with high traffic use and in corrosive environments. The XtraD Gate Lock ...

Experts have completed a painstaking 10-week process to replace two sets of lock gates on the Sheffield and Tinsley Canal.Worn-out gates were replaced at the top and bottom ends of the 200-year-old ...

Here’s a really fascinating circuit that implements a combination lock using relays and logic gates. Even with the schematic and written explanation of how it works we’re still left somewhat ...