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Mini Wireless Temperature and Humidity Sensor - Developed in The USA - 24/7 Data Logger with Alarm – Bluetooth Smart Thermometer and Hygrometer - Monitor Refrigerator Freezer Pets (T3)

4.2 4.2 out of 5 stars 905 ratings

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Black
Corner String Hole

Purchase options and add-ons

Brand tempi.fi
Item Dimensions LxWxH 1.57 x 1.57 x 0.65 inches
Material Plastic
Style Battery Powered
Measurement Accuracy 0.3

About this item

  • 🌡️ ACCURATE AND AUTOMATIC - Made with premium Swiss components, this wireless temperature and humidity monitor is extremely accurate. It automatically records a new temperature and humidity reading every minute of the day and syncs to your phone
  • 🌡️ ALERTS ON YOUR PHONE: Whether you are monitoring your refrigerator, freezer, or greenhouse - the temperature sensor will send an alert directly to your phone so you can take action before it's too late. Each sensor can send alerts to multiple phones and each phone can monitor multiple sensors
  • 🌡️ UNLIMITED STORAGE: Easily browse hours, days, weeks, and years of historical data using the app's interactive and intuitive graphs. Export the entire history - or just parts of it - as a CSV file, which can be opened in Microsoft Excel or Google Sheets
  • 🌡️ FITS ALMOST ANYWHERE - This mini sensor is beautiful to show off and also super easy to hide. You can fit it in your freezer, fridge, cigar humidor, reptile cage, and just about anywhere else
  • 🌡️ BLUETOOTH: This sensor can sync with your phone from up to 330 ft away. Obstructions such as walls will reduce the range but in a typical 3000 sqft house, you can usually monitor any room. If out of range, your phone will automatically sync up to the last 40 days next time you are within range.

Additional Details

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Customer ratings by feature

Easy to read
4.8 4.8
Easy to use
4.5 4.5
Accuracy
4.4 4.4
Value for money
4.1 4.1

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Product Description

WHY YOU NEED TO MONITOR TEMPERATURE & HUMIDITY

There are many reasons to monitor temperature & humidity, including your health. Maintaining the right temperature and humidity values in your home is crucial for the health and the quality of life inside your household. Keeping proper conditions can help prevent dry skin, chapped lips, a scratchy throat, itchy noses, and reduce the transmission of some viruses like the flu. If you want to stay on top of your home’s temperature and air quality at all times, this mini wireless sensor is the answer.

Another important reason is to protect critical supplies like your food and medicine. These items become even more precious during times like the pandemic when store shelves are empty and nobody wants to leave their home. The fact is there will always be crises such as floods, hurricanes, tornadoes, earthquakes, and blizzards. No one is immune from them.

Whether its during a crises or at any other time, refrigerators and freezers often fail and within hours can heat up and ruin everything in them. Overstocking refrigerators and leaving doors open can also lead to high temperatures. It is best to get notified before it is too late so you can save your food and medicine before it spoils.

Here are some reasons to monitor temperature & humidity:

  • To get alerts before your pipes burst
  • To monitor greenhouse conditions
  • To keep ideal conditions for wine
  • To ensure proper conditions at senior living centers
  • To keep your pets happy; reptiles, dog houses during summer & winter
  • To properly store medicine & cleaning supplies
  • To help maintain proper conditions for painting and curing
  • To protect art collections and musical instruments
  • To enjoy the perfect cigar
  • To hatch & raise chickens
  • To monitor server conditions
  • To brew beer or make wine
  • and many more...

The Mini Wireless Temperature and Humidity Sensor by tempi.fi records a new reading every minute and sends alerts directly to your phone.

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BE ALERTED RIGHT AWAY

Whether your are monitoring your backup freezer, a baby's room, or the temperature in your doghouse, you need to be made aware of any temperature or humidity problems before its too late.

This sensor sends alerts directly to your phone. You can set high or low temperature and humidity alerts and will receive a notification when the temperature or humidity crosses the thresholds, allowing you to take control of the situation, make necessary adjustments, and mitigate damage.

Not in range when the alert occurs? No problem. If you are out of range when the sensor triggers an alert, you will get the alert on your phone when you come back into range.

monitor living room babys greenhouse

WIDE RANGE OF OPERATION

This sensor has a theoretical range of 300ft in a space with no obstacles in its path. Its typical range is between 60 – 120ft., depending on various factors, such as piping and the type of wall material. As long as you are within range, the sensor will have no problems transmitting data to your electronic device. Out of range? No problem, get sync your data and get alerts you missed when you get back into range. In a modern 3,000 square foot home, the sensor can usually be detected in any room.

cigar humidor alert humidity sensor fresh taste

FOR LARGE TO SMALL APPLICATIONS

This mini wireless sensor can fit just about anywhere. Whether you are placing it in the back of your freezer, a cigar humidor, or a wine cooler, you shouldn't have a problem placing the 1.57" x 1.57" x 0.65" sensor (40 x 40 x 16.5mm).

The sensor is not waterproof because it has a humidity component that needs to be directly exposed to the environment. The sensor can be used outside if it is protected from water, rain, and snow.

long battery life replaceable coin cell

report data history export chart temperature humidity csv excel analytics tableau graph monitor

protect musical instruments damage humidity guitar piano les paul warped moisture damp hot

OPERATES ON A SINGLE BATTERY FOR OVER A YEAR

This mini wireless temperature sensor is built to operate 24/7 indoors or outdoors. If placed outside, it is best to keep it in an airtight ziplock bag to protect against water, rain, or snow. Don’t worry, even inside a protective bag the sensor should still report an accurate temperature reading. The device relies on a CR2477 coin cell battery (included in the package), which should provide power to the sensor for more than a year.

LEVERAGE THE POWER OF UNLIMITED DATA

The downloadable app is designed to automatically keep an unlimited, minute-by-minute history of its temperature and humidity readings. You may export and generate the entire history - or just parts of it - as a CSV file, which you may open in Microsoft Excel or Google Sheets. Discover patterns and pore over years of temperature-reading history through the app's interactive and intuitive graphs.

PRESERVE YOUR BELONGINGS

High levels of humidity can easily cause wooden furniture, instruments, and flooring to warp, bend, or crack. This wireless sensor is a must-have if you keep antique pieces, musical instruments, or art collections in your home.

Keep a temperature sensor inside your instrument cases, in your home art gallery, or your antique furniture showroom to stay updated on room temperature readings.

app ios android dashboard chart report export data settings alerts calibrate calibration history

Specifications

  • Size: 1.57″ x 1.57″ x 0.65″ (40 x 40 x 16.5mm)
  • Weight: Less than 1 ounce (28g)
  • Temperature: Range: -40°F to 140°F (-40°C to 60°C), Typical Accuracy: +/- 0.3°C
  • Relative Humidity: Range: 0 to 100%, Typical Accuracy: +/- 3% (typical)
  • Battery Life: > 1 year (less in freezing temperatures), Replaceable coin cell (CR2477)
  • Storage:
    • Sensor's internal memory holds the last 22 days of readings @ 1 reading per minute
    • App stores a virtually unlimited amount of data. 3 years takes approximately the same space as a song (6MB).
  • Wireless Range:
    • Theoretical range is ~300ft with no obstacles.
    • Typically range is between 60-120 ft but depends on the environment (obstructions, wall material, piping, etc).
    • In a modern 3,000 square foot home, the sensor can usually be detected in any room.
  • Multiple Users: A sensor can be connected to an unlimited number of users on an unlimited number of phones or devices.
  • Multiple Devices: The app can support an unlimited number of sensors limited only by the phones performance; e.g. iPhones can easily support over 10 sensors.

Product information

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Feedback

tempi.fi

tempi.fi Mini Wireless Temperature and Humidity Sensor - Developed in The USA - 24/7 Data Logger with Alarm – Bluetooth Smart Thermometer and Hygrometer - Monitor Refrigerator Freezer Pets (T3)


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Customer reviews

4.2 out of 5 stars
4.2 out of 5
905 global ratings

Customers say

Customers like the quality, ease of use, temperature and humidity of thermometer. For example, they mention it works well, the app is straightforward and intuitive, and it's well worth the price. That said, opinions are mixed on bluetooth connectivity and alerts.

AI-generated from the text of customer reviews

152 customers mention136 positive16 negative

Customers like the quality of thermometer. They say it works well, the app works as advertised, and the features work well. Some mention that the product is very useful and feature rich. Overall, customers are satisfied with the quality and functionality of thermometry.

"...The app is easy to use, and has hourly, daily, weekly, monthly and yearly graphs that show min/max and average for selected time range...." Read more

"...This gives me such peace of mind and I can check the temp in the freezer at any point from my phone. It was so easy and FAST to set up...." Read more

"...the SensorPush HT.w Wireless Thermometer/Hygrometer and it works beautifully! I track temps at my mother’s home from 120 miles away...." Read more

"...freeze the plumbing - the sensor and app were quick to set up and they work well - just what I was looking for" Read more

130 customers mention126 positive4 negative

Customers find the thermometer easy to set up and use. They mention that the app is straightforward and intuitive. They appreciate the convenience of hooking it up to their cell phone and the ease of navigation on the app.

"...The app is easy to use, and has hourly, daily, weekly, monthly and yearly graphs that show min/max and average for selected time range...." Read more

"...It was so easy and FAST to set up. Would definitely purchase again if needed." Read more

"...EXTREMELY easy to install. Mobile app is intuitive and data are represented in graphs that scale quickly with finger zoom gesture; can also select..." Read more

"...I track temps at my mother’s home from 120 miles away. The gateway was easy to set up as was adding the sensors!..." Read more

99 customers mention83 positive16 negative

Customers like the temperature and humidity of thermometer. For example, they say it helps them monitor the temperature inside to make sure they're safe, track the temperature of their breastmilk cooler bag, and read the constant temperature and moisture along with graphs showing variances over time. They also appreciate the notifications through the app, which is simple and stable. Customers also say the app worked perfectly to access refrigerator temperature even while driving, and is crazy accurate on both temperature and humidity.

"...This gives me such peace of mind and I can check the temp in the freezer at any point from my phone. It was so easy and FAST to set up...." Read more

"...EXTREMELY easy to install. Mobile app is intuitive and data are represented in graphs that scale quickly with finger zoom gesture; can also select..." Read more

"...The humidity reading is also quite valuable!I can't wait for the Wi-Fi bridge to get here!..." Read more

"...The device connects with my cell phone by Bluetooth and keeps a record of the temperatures...." Read more

76 customers mention56 positive20 negative

Customers like the value of thermometer. For example, they mention it's well worth the price, accurate, and saves a lot of product.

"...For needs similar to mine this thing is worth every single penny!" Read more

"...Good product." Read more

"...It wasn’t that expensive it can broadcast right through a medicine box and outside of the fridge has a real nice interface downside is the Bluetooth..." Read more

"...The price is currently a little bit steep (~$40) per unit when compared to others, but you get back a well working and useful device...." Read more

50 customers mention44 positive6 negative

Customers like the accuracy of thermometer. They say it is easy to set up and use, provides accurate readings, and keeps the data logged to go back and refer to. Customers also mention that it is surprising consistent.

"...The app is easy to use, and has hourly, daily, weekly, monthly and yearly graphs that show min/max and average for selected time range...." Read more

"...This sensor works much better than I could ever asked for. It gives accurate readings, directly feeds the information to my phone easily with a graph..." Read more

"...I can’t say enough good things about this product. It’s accurate, slightly cheaper, will have wifi shortly, updates every minute, instead of every..." Read more

"...Accurate enough to suit me. Easy to use app." Read more

33 customers mention30 positive3 negative

Customers are happy with the app. They say it's fantastic, useful, and handy. They also appreciate the great online support and stellar service. The hardware works reliably and produces valuable data. Customers also say the features work well and provide a lot of detailed information.

"...In all, the Tempi.fi hardware works reliably and produces valuable data. I just wish the company were more proactive with updates and features." Read more

"...That said it does have an awesome app and essentially when you go to the fridge, you can get the full history minute by minute or hour by hour or..." Read more

"Features work well and provide alot of detailed information. However Bluetooth range is limited. I placed sensor in freezer in garage...." Read more

"...This tempi.fi is a really useful bit of kit not just for interest sake, but also to adjust and appraise athletic performance in regard to..." Read more

64 customers mention30 positive34 negative

Customers are mixed about the bluetooth connectivity of the thermometer. Some mention that the range is incredible, while others say that it has its range limits. The signal is strong enough to receive with their phone basically anywhere in their home. However, some say that the only limitation is Bluetooth communication accessible and having to be in proximity of the sensor to read. The product works bluetooth only and does not connect via WiFi.

"...It had trouble connecting to my phone at first. I emailed customer service and they got back to me within a day...." Read more

"...The Bluetooth range is incredible, even with the signal blocked by stainless steel doors...." Read more

"...However Bluetooth range is limited. I placed sensor in freezer in garage. Kitchen is adjacent to it and will pick up signal...." Read more

"...The Bluetooth signal is strong enough to receive with my phone basically anywhere in my house, though the fridge signal is weakest...." Read more

28 customers mention12 positive16 negative

Customers are mixed about the alerts. Some mention that it delivers the notifications they were looking for to be aware of temperature. They say it uploads the data to their phone and it alerts every hour if they want. However, other customers say that it doesn't alert when the temperature drops, doesn''t notify them if you've left the house, and the alarms seem to only work as long as they remember every single day to check on it.

"...waiting on the Wi-Fi gateway.The alarms seem to only work as long as you remember every single day to check on the temperatures- if the..." Read more

"...It gives accurate readings, directly feeds the information to my phone easily with a graph...." Read more

"The thermostat doesn’t notify you when the temperature threshold is reached. The app tracks the temperature history but will not notify you...." Read more

"...The app is straightforward and intuitive. It alerts me as I programmed it to, and it has no problem uploading the data to my phone from any room in..." Read more

Almost good
3 Stars
Almost good
I want to like this product. I love the app and the data that you get from the sensor, but you have to be within 10 ft of the sensor to pick up on the data in the app.I have one sensor in the freezer in my garage and I cannot pick up the signal in my bedroom and my house isn’t that large. I have the second sensor in my chicken coop and it’s way too far away for me to get alerts when it gets too hot or cold. So, what is this really good for if you have to get right next to it?
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