Best WiFi Thermometer & Wireless Remote Temperature Monitor in 2025

The concept of “smart homes” has now become an integral part of our lives. From offering unprecedented connectivity to seamless temperature and humidity monitoring, technology has come a long way.

The days of mercury lines or manually logging readings are long gone. At present, the availability of Wi-Fi thermometers and wireless remote temperature monitors has transformed proactive environmental control—whether in your home or office.

With so many different Wi-Fi temperature monitors available in the market in 2025, we have narrowed down the list to the best ones to make your decision-making process seamless. With remote capacity, you can easily check your property and take preventive action. Here’s how.

Bottom Line: The Best Remote Temperature Alarm Sensor

One company is placing the best technology in the hands of all customers by manufacturing a WiFi thermometer that is simple, reliable, and affordable with zero subscription fees. 

After extensive testing and research, we have concluded that the Temp Stick WiFi Temperature & Humidity Sensor From Ideal Sciences (click here to check the price) is the best device overall. 

This model is the easiest to set up; it’s accurate, and it offers the ideal combination of functionality and affordability in a discreet and compact battery-operated unit.

Our team of editors independently research, test, and recommend the best products to help you navigate when shopping online. This post contains compensated links, and if you make a purchase using the links included, we may earn a commission. To learn more, read our disclaimer.

What Is a Remote Temperature Monitor?

A remote temperature monitor is a compact wireless temperature sensor that tracks temperature and humidity conditions via a cell phone. 

The top remote temperature sensors are accompanied by a mobile app that visualizes the real-time data and enables you to set triggers to alert you of any important condition changes.

These devices can connect to either a WiFi network, Bluetooth, or a cellular network to achieve the remote capabilities that enable you to monitor the conditions from anywhere at any time and receive alerts on your smartphone, computer, or tablet.

WiFi Temperature Sensor & Remote Temperature Sensor Reviews

We’ve taken a look at the best remote temperature sensors, and after testing the top models and performing extensive market research, we have uncovered a standout winner. Here are our findings.

1. Temp Stick WiFi Temperature & Humidity Sensor V2: Best Overall

Dimensions: 3.5 x 1.25 x 1.25 inches
Power Source: 2x AA Batteries
Battery Life: 12-24 months
Connection: WiFi
Temperature Range: -40°F to 140°F
Temperature Accuracy: ±0.15°C (max)
Relative Humidity Range: 0 to 100%
Relative Humidity Accuracy: ±3.0% RH (max)

It doesn’t matter whether you’re monitoring a fridge, vacation home, RV, wine cellar, or a beloved pet—the Temp Stick is by far the top remote temperature sensor for the job. 

Made in the USA and built to work in Canada’s extreme temperature ranges, the compact and reliable model is powered by 2x AA batteries, which will give you approximately 12-24 months of life depending on how often you configure the sensor to take readings. 

We recommend installing lithium batteries for better longevity and performance in extreme conditions (i.e., fridges and freezers).

The Temp Stick by Ideal Sciences is a feature-rich Wi-Fi-enabled temperature and humidity sensor with remote monitoring capabilities. It is a compact yet powerful device, and you have all the advanced features of this device to thank you for.

Wi-Fi Connectivity for Optimal Versatility

The biggest advantage of the Temp Stick is that it operates exclusively over Wi-Fi, so you won’t have to worry about the hassle that comes with the need for additional hubs or Bluetooth connections. If you want to eliminate issues with Bluetooth-based sensors, especially with the need for sensors to be near each other, Temp Stick is one of the best-programmed sensors on the market.

The Temp Stick sensor will work effortlessly if there’s a stable Wi-Fi connection nearby. The sensor automatically logs all the data, which you can then review in the app.

Real-Time Alerts and Notifications

The main purpose of stationing a remote temperature sensor is to monitor fluctuations. With Temp Stick, you will receive customizable alerts based on the prerequisite configurations you set up in the app.

So, if there are any drastic changes in the temperature or humidity, you will be alerted immediately so you can take proactive measures. Be it via text, email, or push notifications, the multi-alert system ensures that you don’t miss out on any updates and can maintain ideal conditions, especially in storage areas like wine cellars, greenhouses, etc.

Extended Battery Life

Although Temp Stick only uses two AA batteries, the sensor's low battery consumption technology ensures that the battery lasts up to one year. The duration might vary depending on the usage settings.

Unlike Bluetooth sensors, which often require monthly battery replacements, Temp Stick doesn’t require such maintenance.

Compact, Discreet & Versatile Design

Measuring just 3.5” x 1.25” x 1.25”, the Temp Stick is small enough to fit tight spaces yet powerful enough to monitor large areas. So, if you have limited space and don’t want to add a large and space-consuming sensor in the area, Temp Stick is a pretty fantastic option to consider.

The compact and lightweight design also means it sticks to walls easily, so you aren’t wasting any floor space. Also, all the required installation equipment, including the screws and tapes, are provided with the package, so you won’t have to purchase anything separately.

Works in Any Location with Wi-Fi

It is quite frustrating when temperature sensors come with “location” limitations, meaning that they work in select few spaces and track fluctuations in temperature and humidity. With Temp Stick, you can throw caution out the window because the device pretty much works anywhere. Whether in homes and rentals, RV and boat storage, server rooms, cellars, or greenhouses, Temp Stick works with equal proficiency.

The only requirement for its functioning is a stable Wi-Fi connection. If that’s sorted, you will receive real-time data updates and be able to track historical data.

Adjust the Recording Intervals

You can adjust how often readings are taken from every 5 mins, 10 mins, 15 mins, 30 mins, 1 hour, 2 hours, 12 hours, or 24-hour interval based on your settings. Unfortunately, as 5 minutes is the shortest interval, it is not a real-time reading, and notifications may be received too late. 

Waking up the sensor in shorter intervals will result in decreased battery life. So, we understand that the lack of real-time reporting is an acceptable tradeoff to avoid frequent battery changes. 

For most applications, a 5-minute interval should be adequate time to inform the user.

Battery Level & Loss of Connection Alerts

The updated version of the Temp Stick has a better battery life than before; it now lasts for 1-2 years, as opposed to lasting for 6-12 months the way the previous model did.

In terms of WiFi connectivity losses, the Temp Stick has excellent offline storage capabilities. 

If your Temp Stick cannot connect to either of the designated WiFi networks, it can store up to 1,000 offline readings, so you don’t have to worry about missing a temperature reading. 

Shared Access 

One of the most unique features of the Temp Stick sensor is its “Shared Access” feature, which alerts multiple people about temperature shifts. However, you’d need to update the list of contacts who will receive the real-time alerts in the app.

Also, the user log history allows you to track which person in the shared access list made the changes to the settings so you are aware of the changes made and don’t accidentally switch things back to standard.

Customizable Data Logging and Reporting

When setting up a temperature sensor, one thing that you can’t forego is data logging. You want to keep track of temperature fluctuations to make relevant adjustments to your surroundings. This is where Temp Stick stands out. With a customizable data logging option, you genuinely get to record data and access it at a later date.

The historical data tracking feature lets you view past temperature fluctuations and humidity trends. So, if you place the sensor in business-related areas like warehouses, the device is highly sensitive to even the slightest changes in temperature. Also, it is great for farmers and greenhouse owners; it enables you to optimize the temperature to maintain good plant health.

Most Accurate Remote Thermometer

You can also trust that your readings are accurate and reliable because it’s designed to work in harsh commercial freezers. This WiFi-enabled thermometer is one of the most accurate and robust sensors out of the box. 

It has a temperature range of -40°F to 140°F accurate to ±0.15°C (max) and a relative humidity range of 0 to 100% accurate to ±3.0% RH (max).

Zero Subscription Fees

The ultimate benefit of Temp Stick this model is the lack of subscription fees. There’s no need for a monthly or annual subscription, and the app is 100% free to use and track data. This makes remote access and control much more proactive and affordable.

Also, there are no hidden costs involved. All you have to do is pay the one-time purchase fee of $139.00, and you are set for life. Since you need only two AA batteries, the “maintenance” cost associated with the sensor is seamless, too.

Home Automation and Compatibility with Other Devices

The Temp Stick V2 is compatible with Alexa, IFTTT, and Temp Stick’s Public API makes the process even more seamless. For example, if the temperature suddenly changes, the compatible devices will also adjust their settings accordingly.

Our Top Recommendation

The Temp Stick from Ideal Sciences is a trustworthy WiFi temperature sensor that will get the job done without any hassle. It’s accurate, reliable, and user-friendly. 

If you do run into any problems, the USA-based company offers free email and phone support 7-days-a-week, and the device also comes with a 3-year warranty.

When you’re monitoring expensive, temperature-sensitive equipment, we understand that you must have an accurate monitor that will deliver alerts without fail. We quickly discovered that this wireless thermometer is the most reliable device. We couldn’t find a better option on the market.

Click here to check the price of our #1 recommendation: the Temp Stick

Read full review: Temp Stick Review

2. SensorPush Wireless Thermometer & Hygrometer: Runner-Up Temperature Monitor Unit

Dimensions: 1.57 x 1.57 x 0.65 inches
Power Source: CR2477 coin cell battery
Battery Life: Typically over one year (more in normal conditions, less in extreme cold)
Connection: Bluetooth and WiFi (G1 WiFi Gateway sold separately)
Temperature Range: -40°F to 140°F
Temperature Accuracy: ±0.7°C / ±1.3°F typical 1.2°C / ±2.2°F max
Relative Humidity Range: 0 to 100%
Relative Humidity Accuracy: ±4.5% typical ±7.5% max

The SensorPush Wireless Thermometer & Hygrometer is an appealing option if you’re monitoring rooms or possessions within your house. 

The SensorPush boasts a 325 foot connection range (via a clear line of sight) through Bluetooth. But with obstructions between you and the sensor almost guaranteed, there will be some range restriction. 

There is a WiFi gateway device that you can purchase to connect to the internet, which will improve the remote capabilities. However, it’s expensive, and adding an extra piece of equipment takes away from the compact and convenient nature of the device.

For this reason, we prefer the Temp Stick instead. Otherwise, the SensorPush is one of the more capable wireless thermometers and hygrometers on the market.

This wireless thermometer measures just 1.57” x 1.57” x 0.65” and weighs only 40g, making it one of the smallest remote temperature sensors on our list. 

Despite its small size, the sensor is accurate. Constructed with a Swiss-made sensing component, you’ll always get reliable measurements.

The SensorPush runs on a CR2477 coin cell battery which typically provides over a year of regular use, depending on the temperature conditions the sensor is exposed to. It should last longer in warmer conditions with a shorter battery life in extreme cold.

The remote thermometer takes readings every minute and can internally store data for 20 days—which is handy if connectivity fails as the data will be pushed to your phone when you return and reconnect. 

The intuitive iPhone and Android app can store an unlimited amount of data, conveniently displayed as timestamped graphs. You can also export all of the data into a CSV file for Excel.

Like the Temp Stick, the app is easy to use and can accommodate an unlimited number of sensors, and an unlimited number of mobile devices can monitor one sensor. 

The app offers similar alert and calibration features, and users report that both setup and operation are trouble-free for the most part.

Hopefully, in future models, SensorPush can incorporate WiFi so you don’t have to purchase it separately, as this would undoubtedly make it a more level competitor for the Temp Stick. 

Adding WiFi components would probably make the device more expensive. For those who don’t need a WiFi-enabled thermometer and are frequently in proximity to the device, the SensorPush is a worthy option.

Click here to check the price of the compact and reliable SensorPush on Amazon

3. MarCELL Cellular Monitoring System: Best Cellular Temperature Monitoring Unit

Dimensions: 5.2 x 2.0 x 1.2 inches
Power Source: DC 5V 2A, backup lithium-ion battery
Connection: Cellular
Temperature Range: 0°F to 127°F
Relative Humidity Range: 10 to 95%

If you don’t have access to an internet connection and need to remotely monitor the conditions, the MarCELL cellular monitoring system is our top recommendation.

While we recommend steering clear of subscription-based units in this buying guide, not all users can rely on a WiFi-capable sensor or one with short-range Bluetooth connectivity. 

The MarCELL device works by checking the conditions every 10 seconds. If the temperature or humidity exceeds your guidelines, you’ll instantly receive a phone call, email, or text message. 

When conditions remain optimal, the MarCELL will record the conditions every hour and upload the data every 8 hours to the cloud so you can view it online. You can also purchase “Instant Update” activations, for real-time updates without having to wait for the next scheduled update.

A traditional wall outlet powers the unit, which will notify you of any power outages. If it does lose power, it can last up to 48 hours on the backup lithium battery.

As long as the location has some cellular service, the MarCELL will work effectively. The unit operates off the Verizon 4G cellular network, so you should have no connectivity issues, as Verizon has the best coverage across the United States.

The MarCELL company has a web-based portal and app where you can view current data, see data trends, and change the settings, much like the other models we reviewed.

This unit can monitor more than just temperature and humidity. You can also connect a wireless water sensor to the system called SPuck. The SPuck can check for water leaks in areas such as your bathroom, laundry, or basement.

The biggest drawback is the connectivity costs. While you can choose a lower subscription if paid annually, it’s still pricey. We recommend the MarCELL for situations where traditional methods for remote monitoring aren’t feasible or are unavailable. 

The MarCELL will mainly be a reliable and trustworthy option for RV owners on the road without access to WiFi or vacation homeowners who need to remotely monitor their property.

The device comes with a 30-day money-back guarantee, a 1-year warranty, and it has been designed and manufactured in the USA. The support team is also based in the USA and is available by phone, live chat, and email.

We have rated the MarCELL as the best cellular-notification temperature monitor because of the reliability and performance it provides. 

For users who aren’t bothered by the extra fees and need a cellular temperature monitor that does it all—the MarCELL is hard to beat. This all-in-one unit will provide complete peace of mind.

Click here to check the price of our top-rated cellular monitor: the MarCELL on Amazon

4. Ambient Weather WS-8482-X3: Best Remote Home Temperature Monitor

Console Dimensions: 5.0 x 4.5 x 1.0 inches
Power Source: Console – 5V DC Adaptor (1 x CR2032 for backup), Sensors – 2 AA Batteries
Connection: Wireless RF 915 MHz for sensors to console and WiFi for console data to the internet
Temperature Range: -40°F to 149°F
Temperature Accuracy: ±2°F
Relative Humidity Range: 10 to 99%
Relative Humidity Accuracy: ±5%

We have chosen the Ambient Weather WS-8482-X3 as the best home temperature monitor because of its versatility, smart home features (such as monitoring the ideal humidity level when you go to sleep), and the number of wireless sensors it can accommodate.

The WS-8482-X3 package includes three wireless thermo-hygrometers, and the display console also measures temperature and humidity for a total of four monitoring locations. 

The console also supports four additional sensors: the standard temperature and humidity sensor, a floating water sensor for your pool, spa, or pond, and a soil moisture and wireless temperature sensor. 

In total, you can monitor eight different locations around your home and yard with the WS-8482-X3 package.

There are two levels of wireless connectivity, the wireless sensors connect to the console via a wireless radio frequency (915 MHz) with a 300-foot line of sight range, and the console connects to your router via WiFi (2.4 GHz) and sends data to the AmbientWeather.net cloud network.

By accessing the Ambient Weather cloud platform, you can view your data from anywhere with the smartphone app or through a browser on your computer. You can set an alert for high and low conditions for every parameter and receive notifications via text or email.

There’s also smart home support similar to WS-5000, which is another reason why this is the best unit if you want to set up a device for your home. 

You can connect to IFTTT to control other smart devices, including sprinklers, lights, blinds, and switches. Or connect with Alexa or Google Assistant to ask a compatible device for a personalized report on the conditions.

Click here to check the price of the Ambient Weather WS-8482-X3 on Amazon

5. Govee WiFi Temperature Monitor: Best Budget Temperature Monitor Model

Dimensions: 3.0 x 2.1 x 0.9 inches
Power Source: 3 AAA Batteries
Battery Life: Approximately three months
Connection: WiFi and Bluetooth
Temperature Range: 14°F to 140°F
Temperature Accuracy: ±0.54°F
Relative Humidity Range: 0 to 99%
Relative Humidity Accuracy: ±3%

The Govee wireless temperature and humidity sensor connects to the Govee Smart Home iPhone and Android compatible app through either Bluetooth or WiFi (2.4 GHz only) for wireless monitoring. 

There are no subscription fees to access the app. You’ll only pay the initial cost for the device, which makes the Govee very affordable. However, because of that affordability, there are some functionality drawbacks.

You can set alarms for temperature and humidity through the app, and you will receive alerts through push notifications. Unfortunately, there are no text message or voice call options here. 

The device also provides a low battery alarm, but it will not warn you when it loses its WiFi connection. Multiple users can receive alerts by downloading the app and logging into the same account. 

Data is uploaded every 10 minutes to the app where data is stored online for up to 2 years for you to access.

A nice feature of the WiFi temperature monitor is the digital display that provides readings without having to log into the app. 

The wireless remote temperature sensor also has a desk stand, and it can also be easily mounted on a wall with double-sided tape as it’s very lightweight.

The Govee’s battery power is said to last approximately three months, which is relatively short compared to other models. 

The limited temperature range makes this wireless thermometer unsuitable for cold storage monitoring, especially in commercial freezers. The Govee is better suited for applications around the home, such as a guitar case, wine cellar, or cigar humidor.

If you need a reliable monitor that can notify you when it loses a connection and a longer lasting power charge, look at our top recommendation, the Temp Stick, instead.

Factors to Consider When Shopping for a Wireless Temperature Sensor

Here are some important factors that you need to think about in order to purchase the best remote temperature monitoring system for your particular needs.

How and Where Will You Use the Temperature Sensor?

Remote Home Temperature Monitor and Vacation Home Monitoring

Home use is the most likely reason you’d want a remote temperature monitoring system. You can use it to monitor an infant’s room to ensure it’s neither too hot nor cold, the basement to prevent damage caused by frozen pipes, and the attic to avoid moisture and heat buildup. 

Wireless temperature sensors are particularly useful for remote vacation home monitoring during the months that you are not there.

If you’re also interested in monitoring conditions such as rainfall, wind speed, and barometric pressure, you’d be better served by a complete home weather station.

RV Remote Pet Monitoring

Ensure your pet is safe and healthy by checking the temperature and setting a temperature alarm when you have to leave your fur babies on their own. 

Many users find that a wireless temperature monitoring device is handy when traveling with pets in their RV. If they have to quickly step out and leave their dog or cat behind in the RV, it’s a comfort to know their beloved pets are safe with the help of a remote thermometer. Click here to see our reviews of the best pet temperature monitors for RVs.

Refrigerators, Freezers and Walk-in Cooler Temperature Monitoring

Fridges, freezers, and walk-in coolers must maintain cold temperatures to ensure food stays fresh and safe to consume. 

A refrigerator and freezer alarm is beneficial not only in your own home to preserve your food, but it is a critical instrument for restaurant owners to follow safe food storage practices on their premises.

Wine Cellars

Wine, like any other alcohol, is susceptible to temperature changes. The ideal temperature varies a bit based on the type of wine. 

Still, 55°F temperature and 60%-70% relative humidity are typically perfect for a wine cellar to maintain the integrity of the wine and the corks. You can ensure maximum freshness by using a wireless temperature sensor to monitor the conditions in your wine cellar.

Cigar Humidors

Cigar enthusiasts don’t want their prized tobacco drying out, so continuously observing humidity levels is necessary to keep the leaves and cigars fresh and full of flavor and aroma. Here, a hygrometer is vital for doing just that. 

Cigars need to be kept at a temperature of 70°F and within a stable relative humidity range of 68%-72%.

Incubators

Chickens and other young animals require a specific amount of heat to develop and for eggs to hatch correctly. It’s critical to regulate the temperature and humidity of your incubator to maximize hatch rates.

Greenhouses

Want your plants to grow to their full potential? Ensure they’re getting the heat and moisture they need with a greenhouse thermometer. Now you’ll easily be able to monitor the conditions for your garden with a wireless temperature sensor.

Musical Instruments

Although you may not think of it, temperature and humidity can have an adverse effect on musical instruments, especially those made of wood. If the relative humidity is too low, the wood on your guitar or string instrument can shrink and crack. 

Too much moisture in the air can cause the wood to expand and swell, negatively affecting the instrument’s sound. Experts recommend that guitars be kept at an ideal indoor humidity between 40-50% and a temperature of around 72°F.

Accuracy and Precision

Accuracy is one of the most critical factors in selecting a wireless temperature sensor. A slight discrepancy in readings can make a significant difference, especially for sensitive items like food storage, refrigeration, HVAC monitoring, greenhouses, or pharmaceutical storage needs.

The Temp Stick is an excellent model to compare with other models. We’ve found that it is the most accurate WiFi temperature monitoring system. 

It has a temperature measuring range of -40°F to 140°F accurate to ±0.4°C (max) and a relative humidity range of 0 to 100% correct to ±4% RH (max). Any sensor you choose should have similar specifications or better. 

Connectivity Options

What type of connectivity option you choose will vary based on your specific needs. Cellular connectivity might be your only choice if you need to monitor a distant location. 

Monitoring close to your home will make a wireless thermometer or Bluetooth device viable. If your monitoring location has access to the internet, then WiFi thermometers will be the most versatile and reliable option.

The kind of connectivity you choose for your temperature monitor will also influence your purchase decision. Temp Stick, for example, runs solely on Wi-Fi connectivity, which allows you to control the device and monitor the temperature data remotely.

On the other hand, Bluetooth devices require close proximity to get real-time data updates. Opting for a cellular data-programmed temperature sensor will lead to recurring costs.

So, in short, a Wi-Fi programmed sensor is your best choice, which explains why Temp Stick is one of the most popular sensors on the market at the moment.

User Interface

Ensure any remote temperature alarm system you choose has a user-friendly interface. Access from a smartphone or tablet through an app is undoubtedly preferable, but at a minimum, you should at least be able to view an application on a website. 

Again, the Temp Stick shines here, as its remote temperature monitoring app (for iOS and Android) allows for easy access to current data and a complete history of archived data. 

Use the app to check room temperature with your iPhone or Android, change settings, and effortlessly create and receive alerts based on your custom triggers.

Additional Sensor Support

Some models can support additional sensors that operate on the same platform so you can monitor multiple locations at any given time. With the Temp Stick, you can control and receive alerts from an unlimited number of sensors under one account.

Power Source

Wireless temperature sensors will primarily operate from one or more power sources, with most running on battery power. 

Remember that the power source will affect how portable the units are, and your choice depends on your requirements. We recommend selecting a battery-powered WiFi model as it offers the most portability.

Initial Cost and Subscription Fees

Typically, the more accurate, reliable, and feature-rich the sensor is—the more expensive it will be. However, at the same time, we don’t see the need to purchase any sensor with subscription fees unless you require cellular connectivity.

Our top choice, the Temp Stick, may not appear the cheapest. However, it has zero subscription fees, and the WiFi connectivity makes it worthwhile in just about every possible scenario as you’ll have the ability to monitor the conditions from almost anywhere at any time.

Conclusion

After our testing, we’re particularly impressed with the versatile features, minimal limitations, and a compact design of the Temp Stick WiFi Temperature & Humidity Sensor. 

Not only that but after thorough testing and analysis, we have also concluded that Temp Stick is the most accurate option in the lot. Paired with its clean and intuitive app and easy Wi-Fi connectivity, the device is the whole package – moreover, you don’t have to pay anything extra.

Users seem to have the most long-term success with this WiFi thermometer, so we recommend it here without any reservations.

Beyond that, the next best option is the SensorPush Wireless Thermometer & Hygrometer. While it requires a WiFi Gateway to view data remotely, its performance rivals that of Temp Stick. If you just need a wireless home-use thermometer, then the SensorPush will do an excellent job.