This little sensor from pp-Code is a smart way to keep an eye on temperature and humidity from anywhere.

It connects to your 2.4GHz WiFi and sends data to the pp-Code portal (or you can use a $20 gateway for a super easy plug-and-play setup).

The sensor reads the environment every minute, and logs data every hour—or as often as every 15 minutes if you subscribe.

What's cool is it has a built-in relay you can program to turn things on or off based on temperature or humidity.

Like, if humidity gets too high, you can have it automatically kick on a dehumidifier.

Or if temps drop below a set point, it could fire up a heater.

The relay handles up to 10A, or you can use it to trigger a bigger relay for heavy appliances.

You get free email alerts when temps or humidity go outside your set range.

SMS alerts are optional with a small subscription ($2.49/month or $19.99/year), which also unlocks power-loss detection, daily log snapshots, and longer history storage.

The unit logs spikes in temperature (like a sudden +/-5°F change) immediately, so you don't miss a disaster.

Works great for homes, barns, RV's, storage units, vacation rentals, or tech rooms.