February 24, 2025FirealarmAdevice that makes a bell or other alarm sound when a fire occurs. It isequipped with a heat sensor that automatically sounds a buzzer when thetemperature reaches a certain level, and a gas (...view
October 7, 2024HydrophoneAn acoustic-electric sensor that responds tounderwater sound waves and emits electric waves that are actually equivalent tosound waves. It is mainly used to detect the approach of submarines...view
August 27, 2024Coin sensorSensors used in vendingmachines to identify coin types. They identify coins based on their diameter,weight, whether they have a hole in the center, and patterns. Sensors thatanalyze the com...view
February 25, 2025Oil film sensorThe sensor detects the oilfilm formed on the water surface due to oil outflow. The principles ofdetecting the oil film on the water surface include using the change of lightreflectivity...view
October 6, 2024Hall Pressure SensorA sensor that uses the Hall effect of certainmaterials to convert the sensed pressure into a usable output signal. Forexample, under the action of pressure, the Hall device fixed o...view
August 26, 2024Clinical ThermometerBody temperature can be detected by glass tubethermometer, electronic thermometer and liquid crystal temperature sensor.Glass tube thermometer is a double-layer tube with mercury s...view