How does a reed switch work?

This video demonstrates how reed switch works. A reed switch consists of two contacts that are hermetically sealed inside of a glass tube. A magnet is used to pull the two contacts together to complete a circuit. We use reed switches in almost all of our float switches and liquid level sensors. For more information on our complete line of float switches and liquid level controls please visit us at www.liquidlevel.com or call us at 800-789-2851

[@reggaemoose]

This was an easy to understand presentation. Thanks for posting.

[@ArnaudMEURET]

Well, that’s more of a simplified “how to use” than “how they work”. From the title, I expected an explanation of the working principle...

[@quincybirwood2629]

The SPDT reed switch is exactly what I need. Thanks for posting.

[@Sacra898]

thank you for this video. brings clarity on how door alarm sensors work; I am trying to figure out how it works so I can properly detail it in my product proposal.

[@electronicswithzach5543]

This was a very informative video. Thank you for making it!

[@kelsie9912]

Thanks! great demonstration and easy to follow

[@zamrabatool1664]

It is wonderful!!! I don’t know why there are twenty dislikes for this video.Sir you are awesome.😊😊😊😊😊

[@raedbishtawy1]

Thank you so much for the illustrative lesson.

[@mareysaad6597]

Thanks for this fabulous demonstration

[@rolandpm08]

Excellent explanation, Thanks!!!

[@CrazyCoupleDIY]

Thanks absolutely clear explanation

[@padraiggalvin2807]

Great video. thanks man

[@PaulbylPaulbyl]

Excellent explanation best on KZbin.

[@muhammedalisolkar5969]

Great video

[@nobodyisprfct]

Thank you for explaining! I was looking for a way to light up a chessboard as pieces move. I Just need to do the math now. Thank You

[@vinuvarghesemavely6453]

Thank you

[@burn1down249]

very interesting

[@tjm3900]

Great explanation But you could demonstrate how the switch reacts as the magnet is moved across the switch from end to end. The switch reacts to the magnetic field and the switch can be more sensitive in some areas than others and at the mid point might not even work at all !

[@AnthonyFrancisJones]

Yes, it seems with a lot of these reed switch videos the orientation of the magnetic field is not made clear. It is a bit counter intuitive that you bring the magnet poles alongside the reeds (parallel to them) not one pole directed at 90 degrees. In a reed relay where the reed is inside a solenoid the same is true - the magnetic field lines run parallel to the reeds. The very tips of the contacts are coated with a metal that is not chosen for magnetism but for good electrical conductivity. The reeds are made of a 'soft' magnetic material and when a magnetic field is near them they become magnetised and overcome the 'spring' force that keeps them separated, and stick together. Remove the magnet and they spring apart. Hope that helps a bit.

[@natarajanmohan20]

I need this reed switch No +NC

[@nicoloray517]

hola, te hago una consulta. tenes idea si conecto el sensor a una placa usb gamepad si me lo reconocera?

[@moutonsteve]

can the glass break easily?

[@Joshua277456]

Awesome

[@teddycheung9552]

it is used in the chess clock, can you show another use of it?

[@inttubu1]

Double the speed, your hear it normal.

[@Ex-fk4nr]

if you shake the Reed switch really hard is it gonna turn on without a magnetic field?

[@rich1051414]

No, maybe if you dropped it on concrete it would momentarily, but not just by shaking it.

[@jhunbasbas3207]

Where can I buy this

[@faajukareem8622]

Sir.. What is the size of third one?

[@nikkimae6772]

Why pole of a magnet needed to be close to the reed switch? South pole or north pole for it to be on in the normaly open

[@rich1051414]

Pole doesn't matter. It's just a piece of steel attracting to the magnet. However, there is directionality to the switch. You have to put the magnet on the correct side of the switch or it may not work.

[@Nosci1020]

Are they susceptible to vibration? i was thinking of putting it on an ebike to make a speed limiter switch but im worried that the switch will vibrate during the ride.

[@johngreck2053]

how would that work?

[@baconsledge]

you totally ignored how important magnet orientation is to tripping the switch. The most important detail.

[@jarskiXD]

great for making tamperproof IEDs

[@lenso010]

how to make a reed switch that it clicks each time when magnet is active and deactivate . I will start and stop a timer with touching same button.

[@aidwilli]

You would need to use a one shot to catch an edge of the changing contact state

[@yorenton]

Does that sound come from the reed switch as well?

[@Verschlimmbesserung]

No, the switch is basically a polarized conductor. The sound is coming off of the multimeter, is my guess.

[@Gatsbi]

I thought this was a fuse

[@adilasghir3306]

i didn't understood a shit but whatever a nice video.cazzo

[@slappyfrost]

lmao

[@besteozcan2365]

:D

[@williamcharleson2051]

You talk so slow it drives me nuts

[@Sacra898]

we live in a fast paced world. we want everything instantly. change your perception and be grateful this informative video exists and that you encountered it

[@rthony7780]

title misleading. thank you for wasting our time.