Everyone wants a comfortable environment in their room or office. If you have a hygrometer, then you can easily know the current condition of the environment. A digital hygrometer is the latest measurement tool that can give you humidity, temperature, comfort indicator and so on in just one display.
Having the best digital hygrometer will help you to keep the room condition in the perfect and ideal stage to have the most comfortable environment. You can easily know if there any change happens and also the records. In this article, you will get an ins and out idea about digital hygrometer.
What is a Digital Hygrometer
Digital Hygrometer is the upgraded version of an analog hygrometer that is used before. Digital hygrometer uses digital sensor and circuit elements to measure the humidity and temperature of the environment and shows them on a digital LCD Display.
A digital hygrometer is now widely used for their mobility and accuracy. They are easy to use and the chances of error are less than the analog meter. Even they have some extra facility like a comfort indicator, recording feature, temperature sensitivity etc.
Our Recommended Best Digital Hygrometer
There is a lot of digital hygrometers nowadays. But the problem is all of them are not that much accurate or can’t give you a good performance for a long time. Some of them are made for special purposes having special features. Here we will help you to choose the best digital hygrometer for your use.
1. ThermoPro TP50 Digital Hygrometer
ThermoPro TP50 Digital Hygrometer is a compact device that will give you indoor temperature with Humidity Monitoring feature and Temperature Humidity Gauge. It has air comfort indicator that will say you the in which stage the condition is then dry, comfort or wet. You need not to know the idea condition for that day.
The hygrometer will show the real-time humidity in percentage inside the room where you place it. The sensor inside the hygrometer measure and calculate the real-time data with a great perfection. The indicators beside the data will reduce your effort to realize the actual condition.
The meter has also temperature measuring feature that will show the temperature of then in degree or Fahrenheit scale. You can easily change the scale by just tapping a switch. The design is very compact and strong that will allow you to use it for a long time. It is battery powered and has a wireless communication facility.
The monitor will also show the high and low temperature from records of the day. The same thing also for the humidity. It will help you to analyze the overall condition of the day also to predict the condition for the upcoming day. It will be very much helpful for you if you are living in an area where the weather is uncertain.
The problem with this hygrometer is that after using for a period of time, the hygrometer will give you an inaccurate date. For this, it needs to be calibrated on a regular basis. The monitor has no backlight that is a big problem to see the reading in the night or in dark.
2. ThermoPro TP55 Digital Hygrometer
Thermopro digital hygrometer model TP55 consists of a thermometer and a humidity gauge sensor with 4inch touchscreen LCD display including a backlight. It is a device for indoor installation like an office, house, workplace etc.
This hygrometer response very quickly and show it on the display in real time. The range of the hygrometer is very good and it can measure the temperature and humidity with a vast range that is enough for household uses.
The humidity meter shows the current air conditions and shows in the display whether it is dry or wet or in comfort range. It also displays the max and min humidity and temperature records from the all-day reading. In the temperature section, you can change the selection from ℉/℃ or vice versa with the touch on the screen.
You can also turn on the backlight by touching on the bulb icon and it automatically turns off after 15 sec. Backlight helps you to see the reading in dark. To power up this device you will need two AAA battery. In every 10 seconds, it measures humidity and temperature to provide upgrade and accurate reading.
But sometimes temperature may off by some degrees. It has multiple mounting options such as tabletop stand, wall mount, magnetic back. But the glue that holds the magnet did not hold well and the hygrometer may fell off after some days.
3. AcuRite 00325 Indoor Thermometer with Digital Hygrometer
Acu-Rite 00325 indoor thermometer with digital hygrometer features temperature and humidity sensor. According to the indoor condition, this digital device shows the value of temperature and adjusting with the temperature value it shows the humidity value either in low or high or ok in the humidity level icon.
Over on the right of the current humidity and temperature reading you will see the high and low extremes since the last time it resets. It resets every after 24 hours from when you put in the battery and set new high and low values.
If you want to change the reset time you have to take off the battery then again put it back on there and set your desire to reset time. For power up this device, one AA battery is required. For mounting it has one built-in stand and a magnetic strip on the backside. It shows the temperature reading either in °F or in °C. If you want to change the selection from °F to°C or from °C to ° F, there is a button on the back side of this device.
In the display, there is no backlight and the display are much dim. So, the problem you may face is in the dark or in the night to see the reading. Again, the display is not so clear that in direct sunlight, they will be invisible.
4. HygroSet II Round Digital Hygrometer
HygroSet II Hygrometer is a round shape digital hygrometer and 1.8 inches in diameter with a very durable black plastic case. It features digital temperature and humidity displays. And there is a reset button under the left side of the display. In the back, there is a secure magnetic mount.
This kit is famous in the market only for its accuracy. Besides this, it is very easy to calibrate, described in the manual. It refreshes every after 10 sec. The accuracy of the hygrometer is very good and the range is also vast to measure the condition in your home or offices.
By default, temperature shows in °C and by pressing the red button top of the kit it shows the value in °F and it can easily go back and forth. For power up this kit, one coil cell battery requires and you don’t have to replace the battery almost for 3 years.
When you will unpack this, it will provide you with accurate values for the next 3 months. But every after 6 months you have to retest this kit. This kit will help to keep cigar at the right RH levels at all times. Like another digital hygrometer, this one doesn’t show the maximum and minimum values after the time it is reset. But you will get accurate reading comparing with other hygrometers
5. Cigar Oasis Caliber IV Digital Hygrometer
Cigar Oasis Caliber IV Digital Hygrometer is made by western humidor known as the maker of the most accurate hygrometer in the cigar industry and beyond. This hygrometer can be used as indoor humidity monitor. This kit has features digital temperature and humidity displays.
There is a set button to calibrate and has a max/min/clear button to check the max and min range. You will find the best accuracy comparing with the price. This kit set the high/low and average value for the temperature and humidity over past 3 days. When you will turn it on it will take less than one minute to get right humidity.
It is pre-calibrated and besides this, it is very easy to calibrate, described in the manual. You can change the temperature reading either in °F or in °C by pressing a button on the top. One 1 CR2 battery is required to power up. A strong mounting magnet is on the back.
But there is no backlight in the display. The display is not bright as well. The accuracy is become poor after using for a time. Then it has to be calibrated.
6. Cigar Oasis Caliber 4R Gold Digital/Analog Hygrometer
Cigar oasis caliber 4R gold hygrometer comes with a digital display and color analog reading system. Analog one is designed for humidity reading in % with color indicator and digital readout display for temperature.
Red, yellow and green color bar is used as low/high, perfect humidity range. This kit with pre-calibrated out of the box and you can recalibrate this easily where the calibration process is described in the manual. There is a set button to calibrate and has a max/min/clear button to check the max and min range.
You can change the temperature reading either in °F or in °C by pressing a button on the back side. On the back, there is a strong mounting magnet. It features three days minimum and maximum and average reading for temperature and humidity. It’s small and fully rounded.
But the display is very poor. Sometime you might have problems to read the values. You need to look at the display at proper angel otherwise you can’t see the right value.
No backlight is included in the display so, at the dim light, you can’t see the readings. You may find some difference with the temperature reading in this meter. As a regular user, this kit will be preferable for you with its size, accuracy as well as the design with both digital and analog system.
7. Habor Digital Hygrometer Indoor Thermometer
Habor Digital Hygrometer Indoor Thermometer is a fast response hygrometer. It can give you the data in every 10 seconds with the help of 24 sensors. The meter is powered by a battery so that you can use it as a mobile instrument and the clear display will help you to have the reading in any environment at any time.
The hygrometer has a vast range of measurement. It will show the updated percentage of humidity and the temperature in the monitor on a regular basis. The accuracy of this data is very high. The meter is switchable between Celsius and Fahrenheit scale. There is a weather indicator beside the temperature reading. The indicator will indicate uncomfortable, comfortable and normal condition with an emoji.
The harbor humidity gauge room thermometer has a magnet in the back that allows you to attach it to a magnetic surface. It also has a table stand and also can be hanged in the wall. The design is very convenient to use it in any kind of environment. The structure is strong and compact to use in household and for other uses.
The problem is it drains the battery power at a fast rate. You may need to change the battery again and again after some intervals. The display sometimes goes off and the switch to change the scale of temperature is also very poorly made.
Best Digital Hygrometer Buying Guide
Buying the best digital hygrometer is a matter of looking upon a series of factors. They come in a various model with various features. Before buying one, you should check whether it has these features or not. Here is a compact buying guide of a digital hygrometer for you.
Accuracy: You should choose that one, who has the best accuracy. Accuracy depends on the quality of the sensor, circuit equipment, and relative speed. Less accuracy means that meter will always give you wrong data.
Calibration: You should also prefer that one whose calibration process is easier and perfect. If the meter cannot be adjusted properly after calibration, you should avoid that one. In any time, you may need to calibrate your meter to have a more accurate reading.
Range: Range means in which up and down position, humidity can be measured. In the case of a wide range, you can measure humidity on a big scale and more accurately. The short amount of change can also be changed. These meters are preferable for industrial and research uses.
On the other hand, narrow range hygrometer can’t measure humidity on a big scale. They measure within a shortened portion. They are preferable for household use.
Flexibility: Flexibility of the meter is also important. It should be easily movable and can be put on any surface. It should have a strong body and stand. It may have a magnetic surface and other feature to hang it in wall, glass or in a magnetic surface.
Extra Features: The hygrometer may have some other but important features like temperature sensor to measure temperature, Comfort Indicator, Good lifespan, clear display, dark lit etc.
How Digital Hygrometer Works
Digital hygrometer uses electronic sensor and circuit elements to sense and measure the humidity and temperature of the environment around it. There are three types of digital hygrometer depends on the measuring process.
The first one is Electronic hygrometers that use the dew point to measure the humidity around the meter. If the dew point is close to the current temperature of an area, then the humidity of that area is higher. In this process, a portion of air is cooled to measure the dew point and on the basis of this theory, these meters measured the humidity.
Another one is capacitive hygrometer where the temperature of a surface is controlled based on some electronic feedback from the sensor and then the measure the condensation. It reads the temperature when the condensation happened. It runs AC current between the two ends of the plate and measures the capacitance, from what humidity can be calculated by the processing unit in the circuit.
The last one is Resistive hygrometers where resistance in the sensor is measured. The electrical resistance in their sensor is being changed on the basis of changing humidity and temperature. The meter has to be calibrated earlier.
Analog vs Digital Hygrometer
Analog hygrometer was mainly used earlier when the digital one was not invented. There is some difference between the two. Analog is an antique product with a high class and classic design. But you need to be very good at measuring and calculating the reading. You will not have any extra information without humidity from these devices.
In analog hygrometer, there is scale printed on the surface and mercury is used that rise or lowers depends on the humidity of the air. Having accurate reading is very hard and the amount of error is also very high. Even the accuracy of the reading is also dependent on your measuring skill.
On the other hand, digital hygrometer is very much accurate and perfect. They are easier to use also. They need not any hard method to measure. You can have the reading at a fast rate in a display. So, the chance of error is very low and you need not any vast knowledge over it.
The digital hygrometer uses several electronic sensors to measure the humidity. You will also have the temperature and other readings from just one device. The design of this digital hygrometer may not be so classic or antique, but they are easy to carry and use in different condition. You can use these for any kind of purpose in many places.
So, in this era, the digital hygrometer is far preferable than the analog one if you have no special interest in using antique products.
How to Adjust Digital Hygrometer
Sometimes you may need to adjust or calibrate your digital hygrometer to have a more accurate reading. After you so many times, the sensor will give a little error data and it can be corrected by following some small steps. The calibration process for any hygrometer is the same.
You need a bottle cap, salt, water, and air sealed bag. the process will take 12 hours to be finished. Follow the following steps. But first, ensure that the hygrometer is adjustable.
- Put two spoons salt on a bottle cap.
- Add a little water. Don’t mix it. Be aware that the amount of water is not too much. If it is too much it will dissolve the salt and will be useless. So, use a very low amount of water.
- Keep the bottle cap and hygrometer sensor on the bag and sealed it. Ensure that the bag is fully airtight.
- Keep them for 12 hours. After 12 hours, take the reading.
- If the reading is exactly 75 in percentage, then the meter is okay and well calibrated.
- If it is not 75, then adjust it to 75 with the adjustable nob or button.
Frequently Asked Questions (FAQs)
Before buying the digital hygrometer, there may arise a lot of question on your mind about the product. Here are some frequently asked question and their answers that surely help you.
Q. Is Digital Hygrometer adjustable?
Ans: Yes, you can calibrate or adjust your Digital Hygrometer by following some simple steps. In case of some error, you can easily recalibrate the meter to adjust the result.
Q. How to know the perfect humidity from the reading of a digital hygrometer?
Ans: Normally every Digital Hygrometer has Comfort Indicator, from what you can understand the condition is comfortable or uncomfortable.
Q. Is Digital hygrometer easily movable?
Ans: Yes, Digital hygrometer is battery powered. So, you can easily carry them to any place. Even they have a stand and other stuff to put or hang it in any place.
Q. Is it necessary to place it on a plane surface?
Ans: No, it is not necessary to place the meter in a plane surface to get the perfect reading.
Humidity is being an important factor indicating the real comfort situation of an environment, knowing the current humidity and temperature will help you a lot to take the proper initiative. With the best digital hygrometer, you can easily get the current status with recordings and indicator.
But always ensure that the hygrometer is well calibrated and there is no error in the reading through digital hygrometer has good accuracy.