| 摘要 |
<p>A dispensing apparatus 1 for dispensing material comprising a container 9 of material to be dispensed, at least one sensor 13 for sensing a presence in the vicinity of the apparatus, and a controller for monitoring and/or controlling the apparatus which is arranged to actuate release of a dose of material in response to sensing a presence In the vicinity of the apparatus and also to periodically actuate release of a maintenance dose of material independently of the or each sensor wherein the controller controls the frequency of the periodic maintenance doses according to a preset lifespan of the material in the container and the frequency of actuation in response to the or each sensor.</p> |
