JP Create mege Smart B 73119 Digital Thermohygrometer: Waterproof external sensor

Oliver T. Cardiff

June 15, 2025

Decision:

I picked this up on a whim during a sale, and it's been a solid addition to my home office for keeping an eye on conditions while I work. It's dead simple to set up—just pop in the batteries and you're good to go. I've used it to monitor my bookshelf area, ensuring my collection stays in good shape, and it's reliable for quick checks. A handy tip: place the sensor away from direct sunlight or heat sources for the most accurate readings. Over a couple of weeks, it's performed well, though I did notice it takes a moment to adjust when I move it from my warm office to the cooler hallway. All in all, it does what it promises without any fuss, and for the price, it's a decent buy if you need basic environmental monitoring. 😊

• Pros: In my book, this gadget is incredibly easy to use right out of the box, with a display that's sharp and readable even in dim light. The external sensor handles moisture well, making it versatile for both indoor and outdoor spots, and the sleek design adds a touch of style to any room.
• Cons: As it seemed to me, the readings can sometimes lag a bit when moving between very different environments, and the build, while sturdy, feels a tad lightweight—I worry it might not hold up to rough handling over time. Also, the lack of any connectivity options means you can't track data remotely, which is a minor letdown.