As we enter the winter months, I know many Forum members are wanting to keep an eye on the temperature in various parts of their coach (and other places). I just purchased a kool little product that I think might come in handy in many situations. We just installed a new A/C system in our house, and I have been fine tuning our new fancy wireless thermostat to get the house temps where we want them. I wanted some wireless temp sensors to place around the house. Looking on Amazon (of course) I decided to try the SwitchBot 3-pack. Got them yesterday. After downloading the app to my iPhone and activating the 3 sensors, I am so far very impressed. The app is dead simple - displays all the sensors on one screen with real-time instantaneous updates as the temps change. You can "name" each sensor. The sensors are small - about the size of my thumb. They come with a piece of double-stick tape to mount the sensor, or a nice little lanyard to hang it on a hook. I think a pretty good deal for $26 (including a $10 off coupon).
Amazon.com: SwitchBot IP65 Indoor Outdoor Hygrometer Thermometer Wireless... (https://www.amazon.com/gp/product/B0BVZC9Q31/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1)
I'm assuming you need the hub for true internet access?
Can you set alarms?
Yes, extra cost hub is needed for remote internet access. I didn't require that, so didn't care.
Setting alarms - Yes, you can set alarms on your phone with the basic setup (no hub required).
I've been very happy with the Govee products. Has a Bluetooth hub and alarm settings for all devices. The water sensors have a very loud standalone alarms that alerted me to some door seal issues on a couple occasions. Thermometers can be just temperature or a temperature/humidistat for the fancier model
Smart Sensors – Govee (https://us.govee.com/collections/smart-sensors)