MANUAL REQUEST Controls Seed v1.1STEP Up v2.1EnviroSTEP v3.1VersiSTEP v1.4MicroSTEP v3.0Four Stage Control v2.4STEP50A (discontinued)STEP500 (discontinued) Drive Units ---VC-100A and VC-2000 ILS (Internal Limit Switch) v 12.0VC-100A and VC-2000 ELS (External Limit Switch) v 10.0LST Lead and Follower Vent Controls – included in drive unit user guides (above)Versatile Vent Control v1.4 Curtain Systems ---MidPull v1.1PowerPull v2.6Rollup v1.1 Software ---STEPsaver v4.1Compass v1.1 Accessories ---WeatherGuard v2.2Alarm Manager (landline) v1.2Cellular Alarm Manager v1.6Ethernet Alarm Manager v1.0Lightning Protector v1.4 Information Sign me up for your newsletter
