The Guardian Valve Controller is recommended for indoor use. Some of our customers have installed the unit outdoors using protective covers and/or housing. If indoor installation is not possible, make sure to protect the guardian valve controller against direct water contact, humidity and direct sun exposure. Also, make sure to use outdoor rated power outlets with protective cover for the included power supply. Damage due to exposure to above elements will void the warranty.
Although effective at preventing rain from reaching the splash proof housing on the Valve Controller, excessive humidity and/or condensation buildup inside of the unit could lead to internal damage and potentially void your warranty.