I want the circuit to close, alarm ring upon the door opening. Is this (NO) Normally Open? I don't want to use a relay, which Magnet recessed switch do you suggest?
381712
The description of the item reads:The Normally Closed contacts (contact is closed when door is closed) are rated for 0.5a max. The alarm will be activated when the door opens. Normally close implies the resting state of the switch, meaning that the door is normally closed therefore the circuit is closed; opening the door causes the magnet to release the spring and causes a Normally Open condition (alarm).
381713
I purchased the GE Sentrol 1125W-N 3/8", and I am happy with them. Very easy to install. Yes, the switch is normally open. The circuit closes when the door/window is shut and the magnet in the door/window causes the circuit in the switch to close.
381714
yes it is a normally open switch. if the switch is similar to the original switch get it. if the switch is not I suggest get a similar switch.
381715
When the switch is in the presence of the magnet, the circuit is closed ie. continuity between wires. When the magnet, door or window moves approx. 2 inches from relay the circuit opens
381716
The switch is (no) when there is no magnet present. With a magnet this switch will be closed until you open the door. This ringing the bell when the door is opened. Hope that help you.
381717
This is a NO contact, the magnet holds it closed - typical alarm circuit. I don't know where you can find a NC type switch - check alarm companies, Radio Shack.
381718
This is what "I" would consider a NO circuit. This will not conduct electricity unless the magnet is engaging the switch.. BE CAREFULL!!! Unfortunately they seller will not correct this issue for me
381719
This switch is closed (circuit completed) when the contact is engaged. If you were to use this switch for a door bell as mentioned, the alarm would ring when the door is closed. This switch is to be used when the alarm is triggered when the circuit is broken.
381720
It is a NO switch. It is closed when the magnet is holding it closed, called a "closed loop" and opens when the magnet is removed (normally open)
690420
As far as I know, the only circuit board is in the overhead unit that contains the motor that actually raises the door. This is only the button that's used to open and close the door.
678701
It's normally closed. Push to open the circuit (maintained with twist to release). It has one contact module installed with room for a second.
1226315
Brad, this is not a magnetic switch but it has a safety feature in that you will have to manually reset after each time it is turned off. This is accomplished by lifting up on the red paddle before you press the green on switch. This is accomplished by the red plastic paddle being manually "locked into" a detent everytime it is pressed into stop. Some may feel it is a hassle and may even defeat this by grinding off the little nubs that lock it in. Personaly I got used to it quickly. Hope this answers your question.
630957
You may have to shim the alarm out to meet the magnet. The alarm unit and the magnet unit must be in fairly close proximity.
34105
Magnetic. You need to afix one piece to the door frame and then on piece on the door. When the magnet in the piece separates from the main unit, it triggers the alarm (or the timer if you have it set to the delayed alarm).
1058592
There is a switch on the side of the alarm to turn it off. It will go off when you open the door. It is very sensitive and even a heavy truck going by our house on the road will set it off. I have another alarm that might suit your purpose better that I use. It is a GE 45117 and it has a key pad on the unit. You set your own code. If the door is opened it will go off and it has an ear-splitting screech on that baby. You can put this on the outside of your door, it comes with removable adhesive. You could use the Techko on the inside while you are sleeping. This one just hangs on the door knob. Just a thought. There is a switch on the side of the alarm to turn it off. It will go off when you open the door. It is very sensitive and even a heavy truck going by our house on the road will set it off. I have another alarm that might suit your purpose better that I use. It is a GE 45117 and it has a key pad on the unit. You set your own code. If the door is opened it will go off and it has an ear-splitting screech on that baby. You can put this on the outside of your door, it comes with removable adhesive. You could use the Techko on the inside while you are sleeping. This one just hangs on the door... » Read More There is a switch on the side of the alarm to turn it off. It will go off when you open the door. It is very sensitive and even a heavy truck going by our house on the road will set it off. I have another alarm that might suit your purpose better that I use. It is a GE 45117 and it has a key pad on the unit. You set your own code. If the door is opened it will go off and it has an ear-splitting screech on that baby. You can put this on the outside of your door, it comes with removable adhesive. You could use the Techko on the inside while you are sleeping. This one just hangs on the door knob. Just a thought. « Show Less
1702419
When we had a door that wouldn't open or shut (can't remember now) I turned of the circuit breaker for a few minutes and then turned it on again and it worked great since then. If you can get to the plug that should work too.
1296986
You can literally use any momentary contact normally closed switch rated for at least 10VDC @ 10ma (this is likely to be anything purpose-built for closet door switching). The Amprobe documentation suggests using: * Edwards No. 44 - http://www.edwards-signals.com/index.cfm?pid=69&level=47 * Cutler-Hammer No. 8096K3 - now owned by Eaton but should have the same product number - http://www.amazon.com/Electronic-Expeditors-Eaton-8096K3/dp/B002L3QHL0/ref=sr_1_1?ie=UTF8&qid=1392317420&sr=8-1&keywords=8096K3 * Trine No. 340 - http://www.trineonline.com/alarms_switches.php?field=340 - http://www.amazon.com/Trine-Electic-Door-Switch-340/dp/B005Q3943K/ref=sr_1_fkmr2_1?ie=UTF8&qid=1392317451&sr=8-1-fkmr2&keywords=Trine+No.+340 ( this is from http://www.amprobe.com/manuals/ampR115S,RC120S_om_6-94.pdf) There is also a good discussion here: http://www.diychatroom.com/f18/automatic-closet-lights-14094/index3/ about this exact solution with diagrams and alternatives if you want to use a non-contact switch (like a magnetic alarm switch)
952823
You need a timer. Any cheap 2-prong household timer will do as long as you can set 2 on times and 2 off times. As noted in an earlier answer, you need an on and an off to open the door, and an on and an off to close it.
890934
Yes. It is NO (normally open) switch. Push to close. Spring returns it to NO.
594296
Take a peek at your unit. Has the metal plate that holds the door shut via magnet disappeared? My husband actually screwed the plate to the door and fixed the problem.
37952
Kathy, the off is when you move the switch to the middle position - moving the switch to the right gives you the loud piercing alarm and to the left gives you the milder chime, but if you carefully get it positioned in between the two positions, that should shut it off. It is a very small space between the three positions. hope this helps
980676
We had to install a separate switch to buzz them in/out from the counter and not the door. The switch we got was two extremes, flick it open, the door opens and remains open all the time, you need to switch it back in the closed position to secure (engage) the magnetic system in order to close. Unlike some other switches where u press and it opens then when the door is pushed open and closes it automatically shuts. The package does come with a a green button switch which when installed allows customers to exit on their own. The problem...you have to press, hold and open the door which is a bit confusing to some. You would have to purchase a door bell as well. We had to install a separate switch to buzz them in/out from the counter and not the door. The switch we got was two extremes, flick it open, the door opens and remains open all the time, you need to switch it back in the closed position to secure (engage) the magnetic system in order to close. Unlike some other switches where u press and it opens then when the door is pushed open and closes it automatically shuts. The package does come with a a green button switch which when installed allows customers to exit on their own. The problem...you have to press, hold and open the door which is a... » Read More We had to install a separate switch to buzz them in/out from the counter and not the door. The switch we got was two extremes, flick it open, the door opens and remains open all the time, you need to switch it back in the closed position to secure (engage) the magnetic system in order to close. Unlike some other switches where u press and it opens then when the door is pushed open and closes it automatically shuts. The package does come with a a green button switch which when installed allows customers to exit on their own. The problem...you have to press, hold and open the door which is a bit confusing to some. You would have to purchase a door bell as well. « Show Less
1757259
The only thing this alarm does is chime or alarm every single time the door is opened. It has no on/off switch. I can't see how it would help your cause. I would recommend an intercom with an alarm button.
523690
The unit itself is based on on-off switches. It's a very basic technology. For the door switch, think of it like a set of tweezers on a wire you slip into the door crack. When the tweezers switch comes apart from the door being opened, the alarm goes off. Since the unit is base on on-off switch technology, there's no drain on the battery other than what you use.
425793
This is a simple switch, it has no idea what model you have, and if it was capable of thought it wouldn't care. It simply completes a path for a low voltage circuit with an open point in the middle. Push the button and it lets a dc voltage make contact with the second terminal on the opener, which will either close or open it. It knows what to do. Its ten cents, and will also work as a doorbell button.