Genie GM3T-BX Garage Door Opener, Intellicode Dual Frequency 315/390 MHz Remote - 3-Button Transmitter

Quick, reasonable replacement.

The garage at a house we moved to recently has 2 doors with openers (ProMax PMX-75, 1994 vintage, 12 dip switch type). The previous owner left us only one older Genie 912 1-button remote which worked with one of the doors. With winter weather setting in, it was a hassle to open the other door manually each time. This remote came up as the newer replacement unit on my web search and I ordered one on Amazon. It was delivered promptly by USPS within a few days, despite the holiday season. It was easy to follow the instructions to set this up for the second garage door in just a few minutes, although previewing a useful YouTube video on the topic ahead of time gave me a few essential tips not found in the manual. The most important of these was that the new code set via the dip switches must not to be too simple or repetitive, and must include at least 4 random switches in a different position (on or off). Apparently this is a new security feature to prevent break-ins. The other useful tip is that the dip switches all have to be either on or off (none in the neutral mid position) in the 12 dip switch mode.I than became curious whether I could assign another button on this new remote to the other door (one operating on the old remote). There was no reliable information on the web regarding this, and some even stated (including a Genie rep I spoke with!) that only one 12-dip switch door opener could be programmed with this unit. This is not accurate. After programming the first door and assigning it to the first button, I was able to set the dip switches to the code on the old remote and program the second button to open the other door. Evidently the dip switches do not have to be left in the programmed position for either door once you have assigned it to a button-door combination. In fact, scrambling them up on the remote may be an even further security feature in case the remote is lost or stolen. Bottom line is that the new remote now operates both doors without any problem.This remote is also a lot more compact in size than the Genie 912. It was delivered with the visor clip missing in the original shipment, but the vendor has been very responsive to my query and is in the process of sending one right away. All in all, this has been a very satisfactory purchasing and set-up experience.

Name-brand replacement for my ancient remote which had an unfortunate encounter with a concrete garage floor and shattered. This unit is exactly as described - dual-frequency as it will work with both 315Mhz openers and 390MHz openers. Three buttons is overkill, but it was the only one Genie offered which would work with my garage-door opener.Setup took 10 minutes - I could've done it faster, but the original remote's DIP switches weren't labelled and I accidentally mistook "OFF" for "ON" the first time. :)Very pleased with this product.

Ordered the Genie GM3T on Friday night and got it in the mail on Monday noon. I wasn't sure if this would replace my old Genie AT85P and Genie GT912 (both Frequency 390) remotes until I check on the Genie site and learn it was a replacement for both units. My Genie garage door opener is pre-1995 and uses the 9 pin system. The GM3T is about half the size of the old GT912 and about 2/3 the thickness. Unlike the other 2 remotes, the GM3T is superlight because it uses one of those flat round watch-type batteries (3 volt, CR203), which should last for years. If you have a pre-1995 9-pin remote like mine, here is how you set it up. The instruction was not real clear on one of the steps. First, open up your old remote and look at how the 9-pins are set up. Unless you rather climb up a ladder and remove the cover on the garage door opener to check on the 9-pin setting. Second, easily slide off the cover on the new remote. With a small tweezers, nail clipper or screwdriver, move the pins up or down so it looks exactly like the old remote. Third, below the pin setting, you will see 4 white buttons marked A, B, C, D. If you have an old 9-pin setting, press D and a yellow light will begin flashing. Flip the remote over to the front and you will see 3 remote buttons, marked with 1 bar, 2 bars, and 3 bars. I used the big 1 bar button, so just push the 1 bar button down and a red light will flash several times. Now, go test it out on the garage door, it should work. Replace the cover and you are good to go. You can add the supplied metal clip on it you want. If it doesn't work , you may have a different system, but don't panic. Take a look on the inside of the remote cover, you will see a white label showing another 9-pin system for button B and a 9/12pin system for button C, Just repeat the steps for button D with button B or C instead. I'm glad I got this for $16 plus $4 shipping, instead of paying for the outdated GT390, where sellers are asking for ridiculous prices, ranging from high $30's to high $80's, are you kidding me? I will be buying a few more as future replacements for my other old remotes. According to Genie, the Gm3T works with Genie Gated Community receivers, Genie 912 units, and Intellicode 1 and 2 units.Update: July 30,2015.I'm dropping my previous 5 star rating to 3 stars. After several months of using each of the three remotes, they became rather "sensitive." When I push the button (actually more like a downward pulling motion at times to get it to work), it doesn't always work. Even after I changed the batteries, it is still the same malfunctions like previous Genie openers. As other reviewers said, the range is shorter than the original remote that came with the garage door opener. Now, I have to be right in front of my residence to get it to work, my old one would open a residence or two away.

I have an old Genie garage from the 90s which uses a 9-pin to set the code. Boy was it difficult to find the one that actually works with it. The good news is, this is the remote!Programming it was pretty simple per the included instructions:1) Open the battery hatch on the back of the remote2) Set your 1 through 9 pins to match your old remote (have to remove the back cover) or garage opener3) Leave pins 10 through 12 in the center (since your 9-pin garage doesn't use those)4) Look at the underside of the battery cover to see the descriptions for Button A, B, C, or D. Mine was D for 9-Bi switch (9-pin setup that only has 2 positions, up or down - no center position)5) Hold down Button D until a yellow light next to the battery flashes6) Then turn the remote over and click the button you want to assign that code to (I chose the top button)That's it! Works great. The only nitpick I have with the remote, is that it is huge compared to the other modern remotes. I uploaded a photo for comparison. Still, it is smaller than the original 90's remote.

It didn't have the viper clip.

works perfectly,easy set up.

ok

Didn't wrk