The E-Tongue works by applying a voltage to a water sample, causing any lead ions present to stick to the sensor's gold electrode. Then, the voltage is reversed, causing the lead to come off the ...

Director of Water Supplies Roger Wong on Thursday said sensors will be installed by 2027 to monitor the change of water pressure in water mains. Wong was speaking on an RTHK radio programme after ...

Water sensors that have been damaged by contaminated water will also be replaced to ensure accurate water monitoring. “By following these steps, we hope to effectively address the contamination ...

These low-cost water level sensors are made of a small solar panel, batteries and an alarm. When water levels start to rise, city officials will be alerted by the ping. "So the fire chief will get ...

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