I have a MAR CELL detecting monitor that I use while away for the summer. I set my humidistat and Mar Cell records the temperature and humidity in my home continually. If the temp or humidity exceeds the perimeters I have set online then I would be notified via text, email, and phone call. At that time I could take action to get a AC co to check the air conditioning. The temp in the home is not as important as the humidity which causes mold. I use the same device in my home up north to monitor the heat so pipes don't freeze. This is very helpful. No wifi is needed as it's all done thru Verizon (you do not need Verizon as your carrier either) Cost is approx $12 month and you only pay for the months you want monitored.
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