Make me puzzled!?

Question

my mama just bought a unusual gadget,thats a handsfree touchless automatic soap,I'm curious about its magical principle, tomorrow I gonna consult my teacher .could anybody explain this to me in advance...

plus here is the smart: http://www.sourcingmap.com/handsfree-touchless-automatic-soap-and-sanitizer-dispenser-p-18354.html

Answer 1

I have already purchased one for six months,This soap dispenser allows touchless dispensing of soap. Just move your hand under the sprout and it will automatically dispense preset amount of liquid soap or sanitizer into your hand without touching any part of the machine. This technology not only provides convenience, more importantly it maintains good hygiene for your family and office.

Answer 2

As the add says:

This Automatic Soap Dispenser utilizing the advanced infrared sensor-detecting technology, just hold your hands at the level of the motion sensor, and it will provide you with liquid soap to get your hands squeaky clean. That's clear (clean) enough.

DenisP

Answer 3

I don't know how it works. It's a neat product, though.

Answer 4

Its not ;handsfree touchless automatic soap.  Its handsfree touchless automatic soap dispenser.

Answer 5

It works like the paper towel dispenser that you just pass your hand across the sensor.  They have one at my nail salon, and I really like it.  Automatically pumps just the right amount of liquid soap right into your hand.  Cool, huh?

Answer 6

what do you wanna know? its just liek the automatic towel dispensers except with soap. ive seen them in like really expensive hotels and places.

answer mine please?

http://answers.yahoo.com/question/index;...