A tough and weather resistant module, with or without a 20 character x 4 line illuminated LCD, ideal for use in hostile, exposed or public environments 399-1319 is without display, 399-1325 is with display and 399-1347 is vandal resistant with display . Easy installation in control panel or equipment housing Generous provision for accommodation of additional circuit boards within module Super impact polymer case with GFX keys (stock no. 399-1347 has Chromed zinc keys) Contact configuration: 50mA @ 24Vdc Contact resistance: 100Ω Dielectric strength: 500Vac Insulation resistance: 50MΩ -40 to +75 °C operational Operating Force: 180g. Contact Bounce; 5ms