The EA-EXP-PSU-LM Scantronic Wired Expander is a robust solution for enhancing intruder alarm systems. This 3A power supply unit supports up to 10 zones and 20 outputs, ensuring extensive coverage and control. It features semi-automatic addressing and a common location system with other expanders, streamlining installation and integration. Ideal for securing large areas, this expander is a must-have for advanced security setups.