This is a fine product and is easy to program into the Vista series of controllers as long as you don't read the instructions in the manual. I spent 8 hours pouring over the online installation and user manuals trying to write a list of programming commands to set up this key. After finishing my research, I still had several unanswered questions. So, I attempted to program the key using the two pages in the manual including using the templates supplied in the manual. The key did not work. The Vista 20p would not recognize it... So, after watching a couple of YouTube videos of the key being programed, I deleted all that I had programed about the key and started over. The simple solution; program the key as any other wireless device as long as you have at least four empty slots. Set up the device as a wireless button device and 'learn in' the address by pressing the 'arm' button. Confirm the address by pressing the same button. This needs to be repeated for each button that you plan to use. And it works... no need for templates etc.. After finding the Zn number for a button wireless device, the rest was as easy as programming any other wireless device.. after properly programming the device, it works great. So far, no issues .. Read full review
Verified purchase: Yes | Condition: New
I fully understand that the item was purchased used HOWEVER, I did not expect the battery to fall out when I opened the case to change the battery. Also a small black piece of plastic fell out of the case as I opened it....I can only assume that it came from the bracket that hold the battery in place. The photos in your advertisement did not represent the item that was mailed to me. In your photo the reverse (back) of the fob were 3 tags (1 with 04KEY), (1 with 5434-4ADTLP) and (1 with A 050-2145). The item mailed to me had no tags on the back. I may be wrong but, I was expecting to receive the item in the photo...if the item I received had been pictured I would not have made the purchase. Lastly if this, if you are going to sell items on this site the least you could do is provide photos of the actual items. Read full review
Verified purchase: Yes | Condition: Pre-owned
I've been using the Honeywell 5834-4 Keyfob 20P alarm systems for several years now. The range is excellent; I think about 300 ft down my street. We use these to set our system to MAXIMUM, which means my system will go into alarm immediately if my perimeter is breached. I cannot afford an iffy remote control. This keyfob has never failed. The keyfob is very strongly constructed and the batteries seem to last for years.
Verified purchase: Yes | Condition: New
Original FOB. Medium difficulty to add to my Lynx L5200 (I am a homeowner, not an alarm pro). The enclosed instructions assume that you have done other steps (add users in the system) before you add the FOB to a user. I had to find that information on the net, and play with the steps until I got it right. After I added the first FOB, adding the second one was a cinch. Other than that, this FOB is in a handy size, and it has a great distance reach. Sometimes I am already on the street leaving the house and I can arm the system from there (maybe 100 ft). I also set the alarm at night from my bedroom about 50 ft away, without any issues. This was a great addition to my system. Highly recommend.
Verified purchase: Yes | Condition: New
The Good: These worked great on my ADT Pulse Lynx system. Go online search for and view the video on how to program them. You will need to watch it multiple times AND take notes! But before you do this, read the bad... The Bad: I had to get ADT out to finish the programming. Why? Well.... The key fobs are shipped in high security mode. My system doesn't use High Security mode. They need to 'go back' to the Standard Security mode. How you ask? Well.... And this is what cost me a service call: Simultaneously old down the two buttons on the right and the one on the lower left (Disarm/Panic/Armed Stay) for 4 seconds. It will flash GREEN (instead of RED). Then you can program them.
Verified purchase: No
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