TL;DR: ORIA Smart Thermometer 3-pack for $18 offers good value for monitoring room humidity and temperature - buy recommended.
What are the key specifications?
| Feature | Details |
|---|---|
| Quantity | 3-pack (2-pack also available) |
| Connectivity | Bluetooth |
| Measurements | Temperature + Humidity |
| App | Dedicated app with real-time monitoring |
| Original Price | $19.66 |
| Sale Price | $18.36 |
| Units Sold | 189+ |
| Rating | 94.9% positive |
| Store | AMIR & ORIA Store |
At roughly $6.12 per sensor, that's a solid deal for Bluetooth-enabled devices.
Why do you need smart temperature and humidity sensors?
With the heater running nonstop during winter, I started noticing dry skin and static everywhere. I wanted a way to actually monitor the humidity in different rooms instead of just guessing. Most Bluetooth hygrometers on Amazon run $10~15 each, so when I found this ORIA 3-pack on AliExpress for $18.36, it felt like a no-brainer.
What's included and how does it look?
They arrived in about 10 days, individually wrapped. The first thing that struck me was how tiny they are — barely larger than a quarter. The clean white circular design blends in anywhere. There's a magnet on the back so you can stick them to a fridge or any metal surface, or just set them on a shelf.
How easy is the app setup and usage?
Download the companion app, pair via Bluetooth, and you're good to go. I named mine "Bedroom," "Living Room," and "Nursery." The app shows real-time temperature and humidity at a glance, plus historical graphs over time. You can set alert thresholds — if the nursery drops below 40% humidity or goes above 24°C, I get a push notification immediately.
Bluetooth range is about 30~50 feet indoors, even through one wall. The catch is that data syncs only when you open the app — there's no Wi-Fi bridge. For day-to-day home use though, this hasn't been an issue at all.
How accurate are the readings?
I placed one next to my existing digital hygrometer for a side-by-side test. Temperature was within ±0.5°C, and humidity was within ±3%. For a $6 sensor, that's genuinely impressive. Unless you need lab-grade precision, these are more than accurate enough for home monitoring.
Battery life is rated at about one year using a CR2032 coin cell. Replacement is as simple as popping off the back cover.
How does it compare to other thermometers?
| Where | Price |
|---|---|
| AliExpress (sale) | $18.36 — 3-pack |
| Amazon (similar) | $10~15 each |
| Local retail | $12~20 each |
Buying three comparable sensors from Amazon would easily run $30~45. The AliExpress price gives you a meaningful saving, especially at this quality level.
Pros and Cons
Pros
- 3-pack lets you cover multiple rooms
- App with real-time monitoring and customizable alerts
- Tiny, unobtrusive design
- Built-in magnet for easy placement
- 94.9% positive rating speaks for itself
- ~1 year battery life on a cheap CR2032
Cons
- Bluetooth only — no Wi-Fi, so no remote access outside the home
- No built-in display; you need the app to see readings
- Discount is only 6%, so the price doesn't fluctuate much
- Data logging requires the app to be open
Who should consider buying this thermometer?
- Parents monitoring a nursery or kids' room
- Pet owners who need to track enclosure conditions
- Anyone wanting a budget-friendly smart home climate setup
- People who run humidifiers or dehumidifiers and want data-driven timing
What tips help maximize performance?
I set the nursery sensor to alert between 18~24°C and 40~60% humidity. The living room one helps me decide when to crack a window after cooking. The bedroom sensor tracks overnight conditions so I can adjust the humidifier before sleep. Having three sensors turns vague "it feels dry" into actual actionable data.
Final Verdict
Three Bluetooth hygrometers for $18.36 is excellent value. The app works well, accuracy is solid for the price, and the tiny form factor means they disappear into any room. The only real downside is the lack of Wi-Fi — you can't check readings remotely. But for in-home monitoring, this 3-pack is hard to beat.
Frequently Asked Questions
Q: Are AliExpress home appliances good quality?
Many are surprisingly good for the price. Focus on products with high sales volume (1,000+) and positive reviews (90%+). The key is doing your research before buying.
Q: Do I have to pay customs duty in Korea?
Orders under $150 (about 200,000 KRW) are duty-free. Above that, you may pay 8-13% customs duty depending on the product category.
Q: What if the product arrives damaged or defective?
AliExpress has a Buyer Protection policy. You can open a dispute within 15 days of delivery for a refund or replacement. Always save photos and videos as evidence.
What are similar alternatives worth considering?
- Dibea D18 Cordless Vacuum — 3-Month Review of a Budget Wireless Vacuum
- Portable Bladeless Neck Fan AliExpress Review — Is This $11 Neckband Fan Worth It?
- KERUI Smart Fingerprint Padlock Review — A $10 Keyless Lock From AliExpress
This post contains affiliate links. I may earn a small commission if you make a purchase, at no extra cost to you. This does not influence my review or product selection.
