Best Lab Digital Thermometers of 2025

Brian Howie Avatar
Brian Howie
Last Updated: Jan 16, 2025

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Lab digital thermometers are essential tools in scientific research and experimentation. These thermometers provide quick and accurate readings of temperature, allowing researchers to monitor conditions and make adjustments in real-time. They are typically designed with a digital display and can measure temperatures over a wide range, from sub-zero temperatures to hundreds of degrees Celsius. Many models also feature alarms and memory functions, making them even more convenient for laboratory use. Overall, lab digital thermometers are a crucial tool for any scientist or researcher looking to ensure precise and consistent temperature control in their work.

At a Glance: Our Top Picks

Thermco ACC310DLSDIG Digital Thermometer Cover #TOP 1
Thermco ACC310DLSDIG Digital Thermometer
ftb score rating icon 9.9
Digi-Sense Calibrated Long Stem Digital Pocket Thermometer Cover #TOP 2
Digi-Sense Calibrated Long Stem Digital Pocket Thermometer
ftb score rating icon 9.8
Gain Express K-Type Thermometer w/ 4 Thermocouples Cover #TOP 3
Gain Express K-Type Thermometer w/ 4 Thermocouples
ftb score rating icon 9.6

Top 10 Lab Digital Thermometers

#TOP 1

Thermco ACC310DLSDIG Digital Thermometer

ACC310DLSDIG
Thermco ACC310DLSDIG Digital Thermometer Cover
Thermco ACC310DLSDIG Laboratory Long Stem Digital Thermometer, 12" Stem Length, -50 to 300°C Range, +/-1.0°C Accuracy

The Thermco Digital Thermometer is a reliable tool for your laboratory needs. It features a switchable Celsius and Fahrenheit option, allowing you to choose the temperature scale that suits your work best. Being NIST compliant means you can trust its accuracy, backed by a certificate. This thermometer is proudly made in the United States, ensuring quality craftsmanship. With a long 12-inch stem, you can easily reach into deep containers, making it convenient for various applications. Whether you're conducting experiments or checking temperatures, this thermometer is designed to meet your precise measurement needs.

What We Like
Accurate temperature readings
Easy to read display
Long probe for deep measurements
Good for grilling meat
What We Don't Like
Inconsistent readings over time
Calibration issues for specific use
#TOP 2

Digi-Sense Calibrated Long Stem Digital Pocket Thermometer

AO-90225-15
Silver
Digi-Sense Calibrated Long Stem Digital Pocket Thermometer Cover
Traceable Digital Pocket Thermometer with Calibration, 302°F; 8" Long-Stem

This thermometer is a digital indicator with a long stem that allows you to measure temperatures in hard to reach places. It has a temperature range of -58 to 302F/-50 to 150C, making it suitable for a variety of applications. It is CE compliant and is designed for use in laboratory settings.

What We Like
NIST traceable certification
Long temperature shaft
Easy calibration verification
Good quality and precision
What We Don't Like
Dead battery upon receipt
Can malfunction after water exposure
#TOP 3

Gain Express K-Type Thermometer w/ 4 Thermocouples

68022_2P
Yellow
Gain Express K-Type Thermometer w/ 4 Thermocouples Cover
Thermocouple Thermometer Digital K Type Thermometer HVAC Thermometer Dual Temperature Meter with 4 Thermocouples, MAX/MIN/AVG Temperature Measurement, -50~1300°C (-58~2372°F)

The Gain Express K-Type Thermometer is an excellent tool for industrial use that comes with 2 thermocouples with bead-type tips and 2 extra stainless steel thermocouples. The main unit has a wide measurement temperature range of -50°C1300°C (-58°F2372°F) and includes two thermocouples that can measure from -50 to 400°C (-58 to 752°F) with temperature modes in °C, °F, and K. The thermometer is easy to operate with only 6 simple buttons and has a foldable stand, data hold, auto power-off function, max/min/average readings, and a "T1-T2" calculation function. Additionally, the main unit is protected by a removable silicon rubber holster, which prevents accidental drops and extends its life.

What We Like
Good price
Works well in temperature range
Low-cost solution
Accurate at low temperatures
Easy to use
What We Don't Like
Documentation lacking
Not very sturdy
#TOP 4

Digi-Sense Traceable Digital Thermometer

AO-90205-02
Digi-Sense Traceable Digital Thermometer Cover
Traceable Digital Pocket Thermometer with Calibration, 572°F; High-Accuracy, 11.5" Long-Stem

The Digi-Sense Digital Thermometer is designed for high accuracy, making it ideal for various lab applications. With a maximum temperature of 572°F and a minimum of -58°F, it allows you to measure a wide range of temperatures effectively. The long 11.5-inch stem provides added convenience, enabling you to reach into deep containers or difficult spots easily. Plus, it is CE compliant, ensuring that it meets essential safety and quality standards. This thermometer also features calibration capabilities, giving you peace of mind that your readings are precise and reliable.

What We Like
Accurate readings
Easy to read
Useful for calibration
What We Don't Like
...
...
#TOP 5

Klein Tools ET05 Digital Pocket Thermometer

ET05
1 Count (Pack of 1)
Klein Tools ET05 Digital Pocket Thermometer Cover
Klein Tools ET05 Digital Pocket Thermometer, HVAC Instant Read Thermometer with Backlit Display, Wide Measurement Range, Fahrenheit and Celsius

The Klein Tools ET05 Thermometer is a versatile digital pocket thermometer that allows you to measure temperatures in both Fahrenheit and Celsius. With a measurement range of -40 to 482-degrees Fahrenheit (-40 to 250-degrees Celsius), this thermometer is suitable for a wide range of applications. The backlit display makes it easy to read the temperature even in low light conditions. The Max/Min, Hold, and Average functions provide added convenience and allow you to easily track temperature fluctuations. The 3-Inch stainless steel probe with a protective sheath not only ensures durability but also acts as a handle for easy handling. Whether you need to measure temperatures in the kitchen, laboratory, or workshop, the Klein Tools ET05 Thermometer is a reliable and handy tool to have.

What We Like
Quick, accurate readings
Compact and durable design
Backlit display for low light
Magnetic feature useful in HVAC
Cost-effective compared to lab-grade units
What We Don't Like
Screen can be hard to read
Some units may have quality issues
#TOP 6

weideer Digital Thermometer K-017

K-017
Black,Blue,Green
weideer Digital Thermometer K-017 Cover
weideer Digital Thermometer Dual LED Display Fahrenheit to Centigrade Adjustable DC 4-28V -67~+248℉/-55~+120℃ High Accuracy Temperature Gauge Sensor with 2 Waterproof NTC Probes K-017

The weideer Digital Thermometer offers versatile temperature measurement in both Fahrenheit and Celsius, allowing you to switch between the two easily. With two waterproof NTC probes, you can monitor temperatures in different locations simultaneously, providing convenience for various applications like checking water temperatures inside and outside your car or fridge. Its clear dual LED display ensures that you can read the temperature at a glance, while its compact size makes it easy to install anywhere. This thermometer operates within a broad voltage range, making it adaptable for multiple uses.

What We Like
Compact size
Bright dual displays
Accurate temperature readings
Calibration capability
Great price point
What We Don't Like
Limited instructions provided
Small size may not fit all panels
#TOP 7

UEi Test Instruments PDT650 Digital Thermometer

PDT650
Yellow
Оne Расk
UEi Test Instruments PDT650 Digital Thermometer Cover
UEi Test Instruments PDT650 Folding Pocket Digital Thermometer,Yellow

The UEi Test Instruments PDT650 Digital Thermometer is a reliable and durable device perfect for monitoring temperature in demanding environments. It features a large display, a folding temperature probe, and a built-in magnetic mount, providing convenience and ease of use. With an extended temperature range of 58 to 572-degreeF (-50 to 300-degreeC) and true-RMS for accurate measurement in all applications, this thermometer is ideal for HVAC, refrigeration, and food service areas. Additionally, it has a MIN/MAX record and auto power off feature, making it a great choice for professionals in need of a portable and efficient thermometer.

What We Like
Accurate temperature readings
Easy to use
Long battery life
Magnet back for convenience
Durable for rough handling
What We Don't Like
Default setting is Fahrenheit
Magnet could be stronger
#TOP 8

Digi-Sense AO-90080-06 Traceable Thermometer

AO-90080-06
Digi-Sense AO-90080-06 Traceable Thermometer Cover
TRACEABLE - AO-90080-06 Traceable Thermometer with Clock, Humidity Monitor, and Calibration

The Digi-Sense Traceable Thermometer is a lab digital thermometer designed to provide accurate temperature readings. It comes with a clock, humidity monitor, and calibration feature, making it a versatile tool for your lab. The thermometer operates on a single AAA battery and can be mounted on the wall. With a humidity accuracy of 5% in the mid-range and 8% outside of the mid-range, you can be sure that your readings are precise. The thermometer also has a temperature resolution of 0.1 degree, allowing you to measure temperature changes with great accuracy. The 1% humidity resolution ensures that your humidity readings are highly accurate. With the Digi-Sense Traceable Thermometer, you can have confidence in your temperature and humidity readings, making it an important tool in your lab.

What We Like
High accuracy and reliability
NIST traceable measurements
Useful for calibration
Affordable price for quality
What We Don't Like
Slow refresh rate
No temperature probe included
#TOP 9

Proster Digital Thermometer

4333090752
Proster Digital Thermometer Cover
Proster Digital Thermocouple Temperature Thermometer Dual Channel - with Two K-Type Thermocouple Probe, Backlight LCD Thermometer for K J T E R S N Type

The Proster Thermometer is a versatile digital thermometer that comes with two K-Type thermocouples, allowing you to directly measure the temperature of various objects. With a considerable measuring range, it can be used for liquids, vapors, solid surfaces, and even in high temperature fields like blast furnaces and cookery. The thermometer offers high accuracy, with a measuring range of -50~300℃ and an accuracy of ±1.5%. Its functional design includes features like data hold, MAX/MIN/AVG value measurement, and auto power off. The double display with LCD backlight shows both T1 and T2 temperatures, providing convenience and ease of use. The Proster Thermometer is suitable for a wide range of applications, including fish tanks, pools, furnaces, ceramics, and molten metal.

What We Like
Accurate temperature readings
Large, clear display
Affordable price
Intuitive user interface
Good customer support
What We Don't Like
Some thermocouples may have issues
Plastic feel can be concerning
#TOP 10

DANOPLUS K-Type Thermocouple Thermometer

KB0315_2P
DANOPLUS K-Type Thermocouple Thermometer Cover
DANOPLUS Thermocouple Thermometer Digital K Type Thermometer with 4 Thermocouples, HVAC Thermometer Dual Channels Thermocouple Tester with MAX/MIN/AVG Temperature Measurement (-50~1300°C)

The DANOPLUS Thermocouple Thermometer offers a wide measurement range from -50 to 1300°C, allowing you to take accurate readings across various applications. With its dual-channel capability, you can monitor two temperatures simultaneously, making it ideal for comparing samples. The device features a large HD display that shows max, min, and average temperatures, providing you with comprehensive data at a glance. Its portable design includes a foldable stand and a protective silicone rubber holster, ensuring you can use it easily and safely, even in demanding environments.

What We Like
Accurate temperature readings
Fast response time
Dual temperature monitoring
Good value for price
What We Don't Like
Power button easily activated
Some probes not high-temperature rated
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What thermometers are used in labs?

The most commonly used thermometer in laboratories is the liquid in glass thermometer. It consists of a glass bulb attached to a sealed glass tube, known as the stem or capillary tube.

2. How accurate is a lab thermometer?

The accuracy of a lab thermometer can vary depending on the type. For example, a NIST Traceable® thermometer may have an accuracy of ± 1 ºC within a specific temperature range. A NIST Certified thermometer may provide even more accurate measurements at specific temperatures.

3. What is the difference between a digital thermometer and a laboratory thermometer?

One key difference is that digital thermometers do not contain mercury, while laboratory thermometers do. Digital thermometers typically have a temperature range of 35ºC to 43ºC, whereas laboratory thermometers have a range of -10ºC to 110ºC.

4. What are the disadvantages of lab thermometer?

Lab thermometers have advantages such as being cheap, easy to read, and reliable. They can also be submerged in liquids and require minimal maintenance. However, they are prone to breaking easily, and there is a risk of mercury poisoning if the glass tube breaks.

5. Is a temperature sensor more accurate than a lab thermometer?

Yes, temperature sensors, particularly digital probe thermometers, can provide highly precise results. Advancements in electronic conditioning and signal processing have made them significantly more accurate than traditional mercury thermometers, often by 2 or 3 orders of magnitude.

Editor's Notes

During our lab digital thermometer research, we found 24 lab digital thermometer products and shortlisted 10 quality products. We collected and analyzed 47,643 customer reviews through our big data system to write the lab digital thermometers list. We found that most customers choose lab digital thermometers with an average price of $29.86.

The lab digital thermometers are available for purchase. We have researched hundreds of brands and picked the top brands of lab digital thermometers, including Thermco, Digi-Sense, Gain Express, Klein Tools, weideer. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Brian Howie Avatar

Brian Howie is a content writer and senior industrial designer. After graduation from Westminster College, he has been engaged in product design and manufacturing for 18 years. Brian Howie has always found great pleasure in designing industrial products and sharing his ideas and experience online.

Lab Digital Thermometers Comparison Table

#TOP1
#TOP2
#TOP3
#TOP4
#TOP5
#TOP6
#TOP7
#TOP8
#TOP9
#TOP10
Brand Thermco Digi-Sense Gain Express Digi-Sense Klein Tools weideer UEi Test Instruments Digi-Sense Proster DANOPLUS
Age Range (Description) Adult Adult Adult Adult Adult Adult Adult Adult Adult Adult
Display Type Digital Digital Digital Digital Digital Digital Digital Digital LCD LCD
Product Care Instructions Wipe Clean Wipe Clean Wipe Clean Oven Safe, Wipe Clean Wipe Clean Wipe Clean Wipe Clean Wipe Clean Wipe Clean Wipe Clean
Unit Count 1.0 Count 1 Count 1.0 Count 1 Count 1.0 Count 1 Count 1.00 Count 1.0 Count 1 Count 1 Count
Power Source Battery Powered - Battery Powered Battery Powered Battery Powered Dc Power Supply Battery Powered Battery Powered Battery Powered Battery Powered
Outer Material - Stainless Steel Stainless Steel Stainless Steel Stainless Steel Plastic - Plastic Metal Stainless Steel
Special Feature - Digital - Non Contact Max/Min, Hold and Average Functions; Auto Power Off - Large Display, Auto Off, Dual Probe Large Display High Accuracy High Accuracy
Color Red Silver Yellow - - Black,Blue,Green Yellow - Red -
Specification Met NIST CE - CE - - CE NIST - Atc
Batteries - - 1 9V batteries required. - 2 LR44 batteries required. (included) - - 1 AAA batteries required. 3 AAA batteries required. (included) 1 9V batteries required. (included)
FTB Score
ftb score rating icon 9.9
ftb score rating icon 9.8
ftb score rating icon 9.6
ftb score rating icon 9.4
ftb score rating icon 9.2
ftb score rating icon 9.1
ftb score rating icon 9.1
ftb score rating icon 9.0
ftb score rating icon 8.8
ftb score rating icon 8.7
Where to Buy