Remote Monitoring Your Cabin/Home
There are a few options:
For Power - Cheap Option - if you have a phone line buy a cheap answering machine. Call it, if it picks up then you have power. If it does not answer..... likely you do not have power.
Power & Temp - Land Line Freeze Alarm Remote Monitor, Calls you when power and or temps drop. MUST HAVE LAND LINE. With the battery back up it will call when power drops as well. https://www.amazon.com/Control-Products-Intermediate-FreezeAlarm-FA-I-CCA/dp/B000071NYC/ref=sr_1_16?keywords=freeze+alarm&qid=1579281068&s=hi&sr=1-16
Power & Temp - Wifi - Use a Temp Stick it will email when temps drop to your setting. If it does not report then likely you do not have power. Many other options too. https://www.amazon.com/Ideal-Sciences-Temperature-Monitoring-Historical/dp/B01HH7YD2Y?th=1
Power & Temp - Wifi - Weather and more Use an actual Weather Station - it will email when temps drop to your setting. If it does not report then likely you do not have power. You can also now monitor in/out Temps and much more! https://www.amazon.com/AcuRite-Wireless-Weather-Station-Sensor/dp/B00N1XCA9M/ref=sxin_2_osp20-187be387_cov?ascsubtag=187be387-ebdd-4f72-bcaa-500dc3bc8555&creativeASIN=B00N1XCA9M&cv_ct_cx=weather+station&cv_ct_id=amzn1.osp.187be387-ebdd-4f72-bcaa-500dc3bc8555&cv_ct_pg=search&cv_ct_wn=osp-search&keywords=weather+station&linkCode=oas&pd_rd_i=B00N1XCA9M&pd_rd_r=65653871-32a7-47c9-b8bc-fd73f6483e36&pd_rd_w=Cq3h6&pd_rd_wg=XwQSW&pf_rd_p=eb3e5cda-5ec9-4d94-919d-310a5d641b8b&pf_rd_r=Z3Y6WMVWVFBSBRDVAGWR&qid=1579281639&s=industrial&tag=bestcont06-20
Power & Temp - Wifi/Smart Home - Amazon Alexa, Smart Thermostats, Google Sooooo many options, basically like others if it is not reporting then you likely lost power.
Neighbor or Hire a company to check occasionally. Thorough and eyes on property.
Colorado Mountain Property Check. http://coloradomountainpropertycheck.com
Timberline Property Watch https://www.homewatchinfo.com/