This Siemens Landis Staefa RKN82 HVAC Universal Proportional Controller is in unused condition and is guaranteed to be fully functional. These controllers came from a local MFG that had surplus inventory. We urge customers to view all photos as they show overall condition, included accessories, and useful information. Please feel free to contact us with any questions. Universal Proportional Controller • Control of temperature, humidity, air quality, pressure etc. • Use with Ni1000 temperature probes or active probes 0 ... 10 V DC • 24 V AC supply voltage • A proportional output of 0 ... 10 V DC • One free outlet on / off 230 V AC / 5 (2) A Track Page Views With Auctiva's FREE Counter