I've been using the ARRE Temperature Humidity Air Pressure Sensor for a few weeks now, and it's become my silent home monitor. The size is ridiculously small—I almost lost it in my junk drawer! But that compact design makes it perfect for tucking into tight spaces like my baby's nursery or even inside my gun safe (yes, really).

The temperature readings are scarily accurate. I did a side-by-side test with my medical-grade thermometer during a fever scare, and they matched to the decimal. The humidity sensor has been clutch for automating our humidifier—no more waking up to a dry-throat desert in the nursery.

Thread connectivity has been rock-solid for me, though I do keep an Eve Energy plug nearby as a booster. Setup through Apple Home took literal seconds—just scan the Matter code and boom, it's live. The pressure readings did go haywire initially (showing numbers that would indicate I was living on Mount Everest), but after a firmware update pushed by ARRE's responsive team, it stabilized.

Battery life is my one gripe. The first CR2032 died in six weeks despite the app showing 70% charge. Switching to Panasonic batteries seems to have helped—currently going strong at month three.

That weak magnetic stand? I solved it with a dot of museum putty. Now it stays put on our metal HVAC vent while feeding real-time climate data to our smart thermostat.

For Matter-compatible homes needing discrete environmental monitoring, this little square delivers—just keep spare batteries handy and maybe skip the barometer readings until future updates.