Assembles in minutes - no tools required. Place the assembled SkeeterVac® mosquito exterminator in a shady spot close to the area where the insects live. Secure in place with security stakes provided. Connect a filled propane tank (not included). Turn the FineTune® indicator to the photo that best matches your environment. A multi-spark electronic igniter provides instant, safe and easy starts. Secure the rain cover to protect the controls and the FineTune® lure from children. Trapping will begin as the mosquito exterminator operates 24 hours a day. Within 4-6 weeks you should realize a significant reduction in nuisance as egg laden females are removed from the environment. Maintenance takes only minutes. When the tank is empty you simply change it out, replace the sticky trap and empty the vacuum trap. For maximum performance, the Fine Tune* lure is replaced every 60 days. Affordable: SV-15 Up to 1/2 acre $199.99 SV-3100 Up to 1 acre $339.99 SV-5100 1 acre -plus $399.99