Gebildet 10pcs Plastic Reed Switch Reed Contact Normally Closed Magnetic Induction Switch with 20pcs Small Multi-Use Round Magnets

The reed switches in this set are very small. A half inch by an eighth inch by an eighth inch. SPST reed relays (Form B) used in normally closed applications, this type uses a biasing magnet to ensure the relay remains closed. This is the point made in the review written in French. As the kit includes a much stronger magnet, the biased field is overcome so that the contact can be opened when it is close by. Located on the opposite side of the actuating magnet is the biasing magnet, which is located in the little bump on the relay body. In order for the actuating magnet to work properly, it must face N Switch is triggered, so the light comes on. Activation can be detected by hooking up your ohmmeter and positioning the components while you look for it. Including the ones that come with the kit, the switches work properly with a variety of magnets. It is the actuating area that caused me to run into trouble. If you want it to work, you have to have the magnet very close vertically (or touching). Over the relay, there is a very tight tolerance for horizontal positioning. There can be the slightest variation in horizontal positioning and no actuation will occur. The size of the magnet does not make a difference. The tolerance of the fit for my application was too much to guarantee dependable operation, so I ended up using an NC pushbutton switch instead. You should be able to control your tolerances if you control your position.

Opal Fleming

| Feb 22, 2021

If I am on the test bench and the electronics are accessible, I can easily open the circuit with a magnet, but in application it is extremely hard to find the exact spot to get a reliable open. Consequently, these particulars are worthless. There may be an excessive magnetic field created by the biasing magnet or by using other magnets to open the circuit which may be using the magnet that comes with it to become more magnetized. According to my assessment, the latter is taking place. Due to the stronger magnet holding the circuit open for several days in the open position, the device seems to malfunction even though the items I am using do not have any traces of wear on them. Due to the intermittent nature of this service, I cannot utilize.

Ryder Garrett

| Mar 25, 2021

It worked with a variety of strong rare earth magnets (of various shapes and sizes). Even when aligned properly, the switch is not sensitive enough to work, making it unreliable. According to the study, the magnet orientation (polarity direction) was critical to getting the switch to work.

Miley Braun

| Apr 03, 2021

It does what it says it will do. Normally closed reed switches work well with small magnets. They are available in two types of magnetic fields (On/no field, Off/field). My experience has taught me that the magnet needs to be positioned about 1/2 inch below or above the reed switch in order to reliably activate it. Compared to other products, they have a solid construction and are sensitive.

Raylan KAY

| Mar 29, 2021

This is not designed to have a magnet touch the sensor, it works better 4mm away. I would not have purchased this product if it had been designed that way.

Oaklynn Walsh

| Oct 18, 2020

A switch I ordered was NC, but I received a switch that was NO. It would have been a lot simpler to order those if I needed no switches. Nothing but a waste of time.

Leonel Chambers

| Apr 23, 2021

The prop can be used in an escape room. It worked like a charm!.

Claire Bass

| Feb 25, 2021