The cholera is one of disease that is caused by water contaminated. The previous device to test water contaminated has many disadvantages, like after it changes, the picture of condition on the ground will be obtained and for implementation need very expensive cost. The alternative device is water canary with many advantages like it is fast because use light for the chemical reaction to take place, also it is cheap device because no need to use reagents that can run out, and finally it no need expert person to get actionable information about water contaminated. The working step to test water is inserted a water sample and within second, the device will display either the light which the red light indicate the contaminated water or the green light that indicate safety sample. Everyone can collect life-saving information and can monitor water quality condition. This device integrates with wireless networking by GPS and GSM which can read automatically transmitted to servers to be mapped in real time, so this way can prevent the contaminated water before it becomes emergencies
Source : TED
Source : TED