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The 11 Best Reptile Thermometers & Hygrometers

The best possible setting for your reptile is one that closely resembles its natural habitat. Most reptiles need a humid environment with high humidity to help them shed their skin and stay hydrated.

The humidity in your reptile's cage is the amount of water vapor in the air, and it must be carefully checked and regulated for the reptile's best health.

This is best accomplished with a thermometer and hygrometer. A hygrometer can assist in monitoring and controlling the ideal humidity levels for certain reptiles.

Too much humidity can lead to a moldy enclosure or skin problems, while too little humidity can result in shedding problems, dehydration, and even the death of your reptile.

Finding the proper temperature and hygrometer for your reptile might be challenging, but have no fear! BestForPets (bestforpets.org) has prepared this list of the best reptile thermometers & hygrometers to assist you in finding the correct one for your specific needs.


Fluker’s Digital Thermo-Hygrometer — Overall Winner



This digital Thermo-Hygrometer from Fluker’s is our top pick overall and will provide you with an accurate temperature and humidity measurement within your reptile’s habitat.

It has an easy-to-read digital display that will assist you in maintaining the ideal humidity levels for your reptile and is safe for use even in the most humid settings. The supplied magic-sticker makes mounting and removal straightforward.

It maintains a log of the minimum and highest temperatures in your aquarium, allowing you to rest easy when you are away or asleep. It is also battery-powered and does not require an electrical outlet.

This device is water-resistant and will function fine in areas with high humidity, but it is not waterproof. This implies that if it falls off its mounting and into water, it will likely cease functioning.

According to certain users, extremely high levels of humidity might cause inconsistent operation.


  • Display that is digital and simple to read
  • Easy to install
  • Battery-powered
  • Both lowest and maximum temperatures are recorded


  • Not water proof
  • Can fail in high humidity conditions


Zoo Med Dual Analog Gauge – Best Buy



According to our tests, the Zoo Med Dual Analog Gauge is the greatest thermometer and hygrometer for the money. It has two analog, color-coded dials that are meant to be easy to read, allowing you to precisely adjust the humidity and temperature.

With its fuzzy fastener backing, installation is a breeze. This makes the enclosure easy to clean and move around. The gadget is ready to use out of the box, as it requires neither batteries nor an electrical outlet to function.

Several customers have reported that this unit’s readings are wrong by up to 15 percent when directly compared to a few others.

While this may be acceptable for general use, some reptiles require extremely precise readings for optimal health, which disqualifies it from first place on this list.


  • Inexpensive
  • Simple installation
  • No batteries or electrical outlet needed


  • Some users have reported erroneous readings


REPTI ZOO Reptile Thermometer Hygrometer — Exceptional Selection



This thermometer and hygrometer combination from REPTI ZOO may be ideal for you if you are searching for a premium product that is accurate, long-lasting, and sturdy.

It has a digital display on an LCD screen that is easy to see and is fixed on a sturdy suction cup with an adjustable mechanism for specific placement.

It has two batteries that can last up to one year. It features a temperature range of 14-122 degrees Fahrenheit, a humidity range of 20-99%, and a sample period of five seconds, allowing you to obtain the broadest range of values you would ever require on a regular basis.

While this device is water-resistant, some customers have reported that high humidity levels cause condensation to form on the screen, making it nearly hard to see.

A few consumers have also reported somewhat erroneous hygrometer readings, which, along with the product’s expensive price, prevents it from being in the top two on our list.


  • Digital LED display
  • Adjustable suction cup attachment
  • Prolonged battery power


  • Expensive
  • Lacking total water resistance


Digital thermometer and humidity gauge from Zoo Med



The LCD screen of Zoo Med’s TH-31 digital thermometer and hygrometer is powered by the supplied battery. This machine is unique in that it contains two separate remote probes that may be used to detect temperature and humidity at various places.

The temperature probe is watertight and may be used submerged in water. These 36-inch-long probes provide precise readings and a fully configurable operation within the container. It features suction cups on the rear for simple and speedy installation.

Although the temperature gauge is accurate when compared to others, some users have reported that the humidity gauge might be slightly off. This might be because the probe wires are fairly brittle and could be broken by larger reptiles.


  • Digital screen display
  • Minimal and discrete
  • Incorporated probes for precise readings at various places
  • Simple installation


  • Users report erroneous humidity measurements
  • Delicate probe wires


ThermoPro Digital Humidity Gauge



The TP49 from ThermoPro has a precise temperature and humidity sensor, as well as a 10-second refresh rate, for unrivaled precision. The LCD is tiny and its numerals are big and bold for easy viewing.

The ThermoPro includes three mounting choices, including a desktop stand, a magnetic back, and a hanging pole.

It also contains a unique “facial icon” indication that notifies you instantly of dry, comfortable, or moist conditions, allowing you to change your reptile’s cage accordingly.

It operates on batteries, eliminating the need for cumbersome power lines, and the battery life is up to 24 months.

The screen may be difficult to read due to the device’s small size, particularly in a tank full with condensation. In addition, this humidifier is intended for domestic usage and may not survive long in the humid conditions of a reptile terrarium.


  • Small in size
  • Three distinct mounting choices
  • Extended battery life


  • Humid circumstances make the display difficult to read
  • Not waterproof
  • Not developed particularly for terrariums


Inkbird ITH-10 Digital Temperature and Humidity Meter



Inkbird’s ITH-10 thermometer and hygrometer is a tiny and lightweight digital device with an easy-to-read display. It is battery-powered and Velcro-backed for simple installation.

It is suitable for a reptile cage because to its temperature measurement range of 23-140 degrees Fahrenheit and humidity range of 30-90%.

The little battery is simple and inexpensive to replace, but its lifespan is limited. While this device won’t take up much room in your reptile’s tank, the little screen may be difficult to read in a humid environment.

Some users report up to 5% variation in readings from various units, indicating that the measurements are probably not 100 percent reliable. The Velcro attachment is not suitable for wet tanks, since several customers have reported that it slips off frequently.


  • Small and constrained
  • Clear and legible display


  • Comparatively worse battery life
  • Reading on a small screen might be tough
  • Inaccurate measurements of temperature and humidity
  • Velcro attachment not appropriate for damp conditions

Buyer's Guide

Monitoring the temperature and humidity within your reptile’s cage is one of the most important factors in ensuring the animal’s health and well-being. Insufficient humidity can cause dehydration, shedding problems, and even death.

Your reptile may experience breathing difficulties, mildew, and other health issues if the relative humidity is too high. Cold temperatures can result in hypothermia rapidly.

A thermometer monitors the relative temperature within the enclosure of your reptile, with thermo referring to heat. The relative humidity inside the enclosure is measured using a hygrometer, where hygro refers to moisture.

Observe that hygrometers measure the relative humidity inside the enclosure, which is the amount of water vapor in the air relative to its maximum potential value.

Typically, the two are merged into a single unit for measurement purposes.

When choosing a thermometer and hygrometer for a reptile’s cage, there are some critical considerations to keep in mind.


Possibly the most crucial issue is precision. A precise depiction of the relative humidity and temperature will allow you to tailor the settings to your pet’s individual requirements.

Some reptiles require specific environmental conditions to live, but others are more adaptable. However, not all measuring instruments are created equal; some are more accurate than others.

However, even the most precise units can be variable, particularly in terms of humidity. It is fairly unusual for hygrometer values to deviate from 2% to 20%.

This may be due to a badly constructed unit, but other variables may also be at play. In big terrariums, the humidity levels can fluctuate dramatically across various areas of your reptile’s cage.

The movement of the fog and the pumped-in moisture can also cause continually fluctuating readings. Simply repositioning the device can significantly alter the readout.

Generally speaking, temperature gauges are far less temperamental and produce mainly reliable readings. Warm air holds more water than cold air, which is a significant consideration.

This will alter your measurements when the relative humidity decreases as the temperature increases.

Build excellence

A reptile cage must be humid, which results in a great deal of condensation within the tank. Your thermometer/hygrometer must be able to resist both high temperatures and high amounts of humidity.

The majority of specially-designed units are water-resistant to handle the high amounts of moisture, but they are not waterproof. This means they must be securely secured to the tank to prevent them from falling into the water.

Ideally, the screen should be large and simple to see, particularly a digital LCD type. It will be difficult to see a little screen through the condensation-filled glass of the enclosure, and you cannot open the tank every time you need to take a reading.

Energy source

A battery-powered machine is handy and small, and there will be no unsightly and potentially hazardous electrical lines entering your reptile’s cage.

The majority of battery-powered devices feature LCD panels that consume little power, so the battery should last for months. A further advantage of these units is that they are small and simple to install and uninstall.


Obviously, cost is always an essential factor, but as with most things, you get what you pay for. If you have a pet that requires close monitoring of precise levels, you should invest in the most accurate equipment available.


According to our testing, Fluker digital thermometers and hygrometers are the best in class. It gives precise readings and is simple to use, with an easy-to-read digital display and a magic sticker supplied for convenient mounting and removal.

We discovered that the Zoo Med Dual Analogue Meter is the most cost-effective temperature and hygrometer. It features two analog watch faces, is color-coded for battery usage, does not require an external power source, and is quick and easy to set up. It will provide you with precise measurements at no additional expense. too much expense.

There are so many varieties of thermometers and hygrometers that it can be difficult and even stressful to choose one for your reptile habitat.

BestForPets (bestforpets.org) would like to thank our visitors for selecting our website to learn about and research the best reptile thermometers & hygrometers. We hope that our in-depth evaluations have helped you narrow down your selections so that you may choose the best product for your pet’s specific requirements.

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Dr. Deborah Fletcher

Deborah R. Fletcher, DVM, is a skilled veterinarian with more than 15 years of experience dealing with companion and exotic animals. She has experience caring for a variety of animals, including household cats and dogs, reptiles, birds of prey, and even primates. Dr. Fletcher is a valuable part of the BestForPets team, where she contributes to their aim of providing pets and their owners with the finest possible treatment and services.

Veterinarian (DVM) Dr. Deborah Fletcher


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