OPTIME is a plug-and-play solution for the condition monitoring of machines. The design language and workflow of the device have been deliberately kept simple. The sensors are activated via NFC, screwed to the machines and automatically connect to the gateway and to each other through a mesh network. The gateway receives the sensor data and transmits it to the cloud. OPTIME detects malfunctions and their causes and displays the severity of possible incidents via a multilevel warning system.