A new category of sensing technology transforms mobile robot vision from 2D to 3D, improves safety performance and provides 50-80% cost savings compared to traditional, LiDAR- ...

Originally developed to check level of sewage in sewer lines under smart city programme, Nirchhari can transmit immediate alert in cases of emergencies such as river flood, sewer overflow, fuel ...

A low-cost (~$100), do-it-yourself (DIY) ultrasonic water level sensor/datalogger has been designed, constructed, and tested for use in education, citizen/community science, and research settings. The ...

Other sensors include an optical rain sensor, light sensor, lighting sensor, and a BME280 for air pressure, humidity, and temperature.

NYU is building an ultrasonic flood sensor network in New York's Gowanus neighborhood The hyperlocal flood detection network is set to expand across the city's waterfront in coming years.

Ultrasonic sensors detect objects like sonar — they send sound pulses and measure the time it takes for the signal to bounce off the object and come back.