I bought this for fun as a gift for my husband who now finds he often has to get up in the night for a peewe decided to place it on top of the toilet cistern rather than attached to inner toilet bowl delivery top class easy to fit and use its good for children for toilet training as it even operates in daylight i thought the motion detector would only operate in darknes my only concern is the battery life good fun for the family especially at christmas time great gimmick