I hardly remember to change the air filter, however our current programmable temperature control tells me when it is time. I bought the programmable temperature control this weekend, when our ancient digital component stopped working! All of the numbers disappeared plus I thought it was time to change the batteries. When I put a fresh set of batteries in the temperature control, I still had no digital display. I looked up the problemshooting information online plus all the people said it was time to upgrade the temperature control. I want to the hardware store with a friend of mine, plus the people I was with and I checked out the wide selection of temperature control devices. The sales person tried to get me to buy a wireless temperature control, even though I didn’t believe that was a great option, then sometimes the internet can be spotty in our neck of the woods. I would dislike to have no control over the temperature if the internet is out. Instead, I decided to go with a programmable temperature control. It has a lot of the same features as the wireless temperature control, however it works without being hooked up to the Internet. The programmable temperature control has several odd settings, so I can set the rapidly changing temperatures differently throughout the day. Another relaxing feature on the programmable temperature control is the notifications. When our air filter needs to be changed, there is a small beeping notification on the temperature control. It’s genuinely discouraging plus won’t stop until I reset the device or change the air filter. I believe it’s a relaxing way to remind every homeowner that it’s time to perform the weekly service.