G1SAMB is an Android application developed by GUSSMANN TECHNOLOGIES SDN BHD. It is a free app that falls under the Business & Productivity category. The app allows users to check the status of reservoir and other water levels in their area.

The app has a simple and user-friendly interface. Upon opening the app, users are greeted with a map that shows the location of various water reservoirs. By clicking on a particular reservoir, users can view its current water level, as well as its capacity and percentage full status. Users can also view a graph of the water level over time for each reservoir.

Overall, G1SAMB is a useful app for those who need to monitor water levels in their area. The app is easy to use and provides accurate information about reservoir levels in real-time.