Internet of Things has brought about revolutionary transformations in area of Monitoring and Maintenance of devices. Sensor technology equipped with the right intelligent algorithms have the potential to provide an end-to-end monitoring service for applications in various areas such as industrial machines, and home automation. This paper aims to describe a similar monitoring service for Fire Extinguishers stored in offices, and buildings. The proposed idea will allow user to monitor the real time status of the pressure inside the extinguisher by capturing an image of the pressure gauge and processing it using image processing algorithms and informing the user if attention is required.