Simplex 4004-9802 Class B Expansion Module

Simplex 4004-9802 Class B Expansion Module provides easy installation, flexible initiating circuit monitoring; as well as extensive programmable control capability for areas requiring two to eight IDC zones. Installation ease has been consider throughout, from cabinet design to quick and easy setup. Also,  By employing surface mount components, seven-segment LEDs, and efficient microprocessor programming, an extensive feature list.