Abstract: A disinfection monitoring system, comprising: a sensor module configured to detect use of one or more disinfectants on a surface or in an area; a data logger module connected to the sensor module and configured to log data relating to detected uses of the one or more disinfectants; and a wireless communication module connected to the data logger module and configured to wirelessly communicate the logged data relating to detected use of the one or more disinfectants to a remote monitoring module.

Abstract: A robotic device having a body with an upper surface resiliently connected to a lower surface and having a bump sensor including a contact point on the lower surface, which contact pint is in its normal position when centrally located within a sensor device, which is an aperture having a conducting inner periphery, which sensor device is located in the upper surface of the robotic device, so that a bump on the upper surface is detected by the robotic device when the contact point abuts the aperture conducting inner periphery.

Abstract: A robotic device having a body having an upper surface resiliently connected to a lower surface and having a bump sensor including a contact point on the lower surface which contact point is in its normal position centrally located within a sensor device being an aperture having a conducting inner periphery which sensor device is located in the upper surface such that a bump on the upper surface is detected by the robotic device when the contact point abuts the aperture periphery. The robotic device also includes a drop sensor for use in association with a lower surface of a robotic device said lower surface having a periphery around which a plurality of such drop sensors are located, each drop sensor including a body having moveably located therein a vertically oriented member such that when any such member becomes positioned over a drop in terrain the vertically oriented member will drop down and trigger the production of a signal which is sensed by the robotic device.