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A gas furnace flame sensor is part of an electric ignition system that is connected to the gas valve to control the flow of gas to the furnace. A flame sensor can come in both L or straight shapes, and it is part of the furnace burner's basic assembly.


An automobile's oil level sensor is generally located inside the oil pan. This sensor measures the amount of oil in the pan and sends that measurement to the gauge, alerting the driver when the vehicle needs additional oil.


The fuel level sensor sends a varying signal to the fuel gauge or electronic gadget that triggers the fuel gauge. The components of the sensor, such as float, rod and resistor, work together to give a reading on the level of fuel.


Use sensors to measure a tank level based upon what type of sensor is being employed. It is also important what readout or display is being used for displaying information for the sensor.


A temperature sensor is a data gathering tool that measures the temperature in the surrounding area and converts the information for use by an observer or additional devices. Temperature sensors have a variety of applications from home use to specific scientific uses.


The speed sensor of a vehicle is usually located on either the transmission case or the rear differential assembly of production vehicles. Check your vehicle’s service manual or spare parts catalogue before looking for its speed sensor because vehicle speed sensors come in several different designs


A temperature sensor measures the hotness or coolness of an object. The sensor’s working base is the voltage that’s read across the diode. The temperature rises whenever the voltage increases. The sensor records any voltage drop between the transistor base and emitter. When the difference in voltage


Sound sensors work by detecting differences in air pressure and transforming them into electrical signals. Sound sensors such as microphones usually have built-in amplifiers that increase the strength of the incoming signal.


The radioactive decay of uranium in soil is the primary cause of high radon levels, followed by uranium's decay in water. In some instances, building materials give off radon, but this is less common and contributes to lower levels than those of the gas found in soil.


Radon gas levels are most effectively lowered in buildings with basement or slab-on-grade foundations by active subslab suction, reports the Environmental Protection Agency. Radon levels in buildings with crawlspaces are effectively reduced by submembrane suction. Other techniques include sealing fo