WARNINGS & CAUTIONS To reduce the risk of fire or electric shock due to accidental submersion, do not use the Relay Adapter near bathtubs, washbowls, kitchen sinks, laundry tubs, in a wet basement, near a swimming pool, or anywhere else that water is present that can cover the unit. As with any electronic products, use care not to spill liquids into any part of the product. Liquids can cause a failure and/or a fire hazard. The wall power supply must be used indoors only.