Abstract: Disclosed are systems and methods for monitoring the functions of a machine, particularly an engine, by measuring vibration from the machine, and optionally one or more temperatures inside of the machine.

Abstract: A valve cover may be modified or custom made to contain a device that converts thermal energy from the engine into electricity, which can be used for any suitable purpose. Also disclosed is a casing for attaching to a valve cover used in the collection of thermal energy from the engine.

Abstract: A system is disclosed that includes a pipe and a device for measuring and storing vibration data related to the use of the pipe and its remaining lifespan. The data can be collected wirelessly using a radio frequency device.

Abstract: A sensor device can comprise at least one sensor operatively coupled to a controller, wherein the controller is configured to receive a measured input from the at least one sensor; and a wireless communication device coupled to the controller. Further, the wireless communication device can be configured to communicate with a coordinator. In various embodiments, the at least one sensor can include a volume sensor, a flow meter sensor, a total dissolved solids sensor, an infrared thermal monitor, an air quality sensor, or any combination thereof.

Abstract: A system for recharging a battery converts ambient thermal energy into electricity and then converts the electricity to a form that can recharge the battery. The battery is preferably used to power a device including the system.

Abstract: A device is disclosed for monitoring the function of a machine, such as an engine or compressor, or of any structure or one or more characteristics of a material. The device may be self-powered to function in remote areas and/or hazardous conditions.