Review on 🌡️ YoLink Smart Wireless Temperature & Humidity Sensor - Ideal for Freezers, Fridges, Greenhouses, Pet Cages - Wide Temp Range (-22 to 158 Degree) - Smartphone Alerts, Alexa & IFTTT Compatible - Hub Required by Heather Johnson

I like the compact size of the device. Now he's on the back deck where the temp is a cool 7.7 F (at 8:40) and YoLink says it's 1.4 F at 7:55 and the time difference makes it hard to know if YoLink is right. But this morning I saw my phone reading 0.2F and the local weather station (down the road) recorded a minimum of 0.6F this morning. So I 'think' it's working pretty well. Out on the deck, I noticed that switching from C to F or from F to C immediately shows the current temperature (on the LCD and in the app). Thus data can be selected, displayed and sent to the application. The only downside I see right now is the low sample rate I see when the sensor is outdoors. I can ask Alexa "what's the temperature inside the Prius" and she says "Prius temperature is 5.7 degrees". But I don't yet know how to create an Alexa Routine that can trigger an action when the temperature is <= 5.0F. Therefore, this sensor is not very useful yet. Maybe I should see what IFTTT can do for me.