Patent attributes
A dispenser incorporates, or can receive, a containment portion holding a quantity of dispensable material (e.g., a pesticide). The dispenser has an indicator and a sensor, which can sense a level of light in an environment immediately surrounding the dispenser. The dispenser is formed such that when it is in use it can be set to dispense the dispensable material in response to the sensor sensing a predetermined level of light. The dispenser is formed such that once it is activated to dispense the dispensable material it cannot be deactivated until the dispensable material has been dispensed in accordance with settings of the dispenser, and when the dispensable material has been dispensed in accordance with the settings the indicator indicates that this has occurred.