Touch vs. Touchless Kitchen Faucets
Touch vs. Touchless Kitchen Faucets
When hearing the name, many people mistakenly believe that a touch kitchen faucet is the exact opposite of a touchless kitchen faucet. In fact, these two devices are more similar to each other than they are to a traditional kitchen faucet. That's because both can be turned on and off without the use of a handle. This is done through the use of a solenoid valve that opens and closes automatically when triggered by the faucet's sensor.
There are some big differences between a touch faucet and a touchless faucet, though. A touch kitchen faucet, also called a "touch-sensitive faucet," turns on when a user touches it. This touch can occur anywhere on the faucet, including the handle or spout, and it can be done with a hand, wrist, forearm, etc., which is convenient when your hands are dirty. The on/off features are activated through the same small electrical charge of the human body that makes a touch screen work.
A touchless faucet, also called a "sensor faucet" or "hands-free faucet," turns on when a motion sensor recognizes a hand or other object in front of it, and it turns off when the object is removed. While both touch and touchless kitchen faucets can keep kitchen faucet handles clean and help prevent the spread of bacteria, the fully hands-free nature of a touchless faucet does so more effectively.
How a Touch Kitchen Faucet Works
Touch faucets rely on a technology called "captive sensing" that senses the small charge of the human body. This charge is called "capacitance," which is equal to around 100 to 200 picofarads. Touch faucets are programmed to detect capacitance changes within this range. They do this through sensors built into the handle and the spout.
These don't just sense electrical charges to the sensors themselves but