If I buy two of them will they interact with each other or will they ring independently? because I want to put two up
1881927
These devices come in different channels, which equal frequencies. It is best not to purchase this via mail-order as there is no guarantee that more than one willl have the same frequency. There are packs of more than 1 being sold on Amazon. These packs should have the same frequency. 1 receiver WILL work if both sensors/receivers are the same frequency. The frequency is displayed on the round paper label on the rear. Example: CH17. 17 is the frequency. Purchase 5 boxes with the 17 and only 1 receiver is needed for all 5 sensor/transmitters. Harbor Freight sells them in-store and you can buy as many sets (sensor and receiver) as you want with the same frequency and save batteries by only using 1 receiver. You can set up zone systems. Say 2 on one side of the house, 4 on another, 1 to watch a fence gate, etc., etc., etc., and when the lights go off you know where the security threat is coming from.
1881928
all sensors sound the alarm on all speakers. So if you have 2 sensors you can just use a single alarm speaker.
1117954
I have two, and they work fine. I bougth them separeted, but i believe the chances are small that you get two with the same ids
2145393
Yes, both bases have the same holes to put a ring in either one. I'm not sure if they sell it separate or you will have to improvise.
356765
Yes you can. I've never used it exclusively for one but if I plug it in before my other one it'll go up!
95141
yes, they are independent of each other. there is a cord that is used to connect them.
778413
I don't think so. There are 2 'ringers' but they both work off the same doorbell button.
284046
Susan, the two models will work independently of each other. Each base will need to be connected to your line. Thanks!
617115
Yes, that's what I did in my house. I bought two of these, so I had two push buttons and two ringer units. I set one button to ring as "Door # 1" on each ringer unit, and set the second button to ring as "Door # 2". I did that so that if someone comes to either of my exterior doors, I get notified both upstairs and downstairs. You could actually have MORE units than two, as well. Hope that answers your question.
1311727
Yes unfortunately they don't come in pairs... So you need to buy two of them
794423
Yes. They can operate independently of each other. If you choose to do this, I would purchase regular smoke alarms at a lower price.
826904
no you connect one and all of them will have a dial tone, can only be used for 1 line
504405
Yes, you could, however, they would be a little staggered from each other. There are companies that make sets that may better fit your needs. This one is really cute and we have found that it works great.
405859
You can, BUT you either must order them at the same time or tell them that you already have another unit. If you do so, I am told that they will work together. (If ordered through Amazon, I'm not sure how you would relay that request...) Bottom line: there are two slightly different configurations, each of which operate on different frequencies.
1136677
Yes, you can connect two of them, it should not matter but I would not run both at the same time.
980552
I don't believe you can connect them, but you can definitely buy two and hang them next to each other.
851566
That's hard to say because it depends on the distance between the receivers and the frequency you get "assigned." They apparently randomly assign you one of three frequencies, so it is possible that you could get two of the same one. I've installed two in two separate rooms on two separate floors and they do not interfere despite being on the same frequency though.
2029620
You can have as many intercoms on a single channel and they will share that channel but if you want each one to be individually addressable, they need to be assigned to one of the nine channels. I ended up keeping three on channel-1 and one on channel-2. That's just what worked best for me. The ringer on these things can be dialed from a whisper to "wake the dead".