If you have an existing garage or gate opener that are old, add this attachment will make your old gate or garage compatible with your smart phone. Don't waste your hard earned money buying a smart garage opener when you can just add this to your existing garage or gate opener. This item would only run you about $20. Once it's installed, you can control or monitor your garage functions from anywhere. you can even share allowing authorized users to open your gate or garage. You can check whether you left the garage open while you hurry to work. No need to carry an extra remote.
