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Thermometer/hygrometer

Qisangzigo: Your Professional Thermometer/Hygrometer Manufacturer!

Qisangzigo Co., Ltd is a leading manufacturer and supplier of wooden handicrafts. Our company was established in 1989 and is located in Foshan City, China, currently has 100 employees and a factory area of approximately 20,000 square meters. Currently, we mainly sell quartz wall clocks, wood products, thermometers, barometers, wooden boxes, clocks and other products. The products are mainly made from sustainable wood, but we also use other materials such as acrylic and MDF.

Rich Product Range

Our wide range of wood products includes wall clocks, wood products, clocks, handicrafts, alarm clocks, thermometers, barometers, wooden boxes and allows customers to choose from a variety of styles and patterns.

Well Equipped

We have our own wood processing center and modern production lines, equipped with CNC engraving lathes, stamping machines, drilling machines, end lathes and other equipment, with a monthly output of 30,000 watches.

Quality Assurance

We use natural or recycled wood to make these products, and manage our workshops and production lines in accordance with ISO standards to ensure that our products meet international standards such as CE and ROHS.

Customized Services

Our team not only develops new products but also accepts special orders from customers and produces different products according to needs, including OEM, ODM, processing with supplied materials, logo customization and other services.

What is Thermo Hygrometer?

 

A thermo hygrometer is used to measure air condition. It is capable of quickly and accurately delivering results on the ambient temperature and humidity of air, soil or in confined spaces. Its temperature is typically measured with a digital thermometer. There may be a sensor attached to the device itself or it may have an additional sensor that can be placed in a position that’s remote from the main unit, the humidity is typically measured in one of two ways. They are used widely in the testing of heating, ventilation and HVAC systems. They can also be a valuable tool in determining the quality of the air in an enclosed space that will be used for a wide variety of testing applications, especially when factors such as humidity might affect test results.

Features of Thermo Hygrometer
1

Minimalist Indicator

Our hygrometer with humidity level icons indicates air conditions and categorizes them into dry, comfortable, wet, etc., ensuring you always know how the air in your home/office is changing with just a quick glance.

2

High Refresh Rate

With high accuracy of ±2–3%RH and ±1°F, these thermohygrometers are ideal for measuring fluctuating readings in greenhouses. Their data measurements are updated every 10 seconds, giving you the latest parameters of the air in your environment.

3

Data Records

With their HD MDF transparent display panels, these humidity thermometers display high/low temperature and humidity levels so you can use your home data for correct comparison, ensuring proper indoor humidity.

4

Practical Design

For ease of use, we've equipped these room thermometers with a desktop stand and a magnetic back so you can place the temperature monitor on your counter or refrigerator.

 

Application of Thermo Hygrometer
 

Thermo Hygrometer are used in numerous areas. They contribute to the maintenance of indoor comfort by enabling the monitoring and adjustment of humidity levels to uphold optimal conditions for human comfort, thereby fostering a healthier and more agreeable indoor environment. They also contribute to the enhancement of air quality by facilitating the regulation of humidity levels, thereby inhibiting the proliferation of mold, bacteria, and dust mites that are known to exacerbate allergies and respiratory issues.
Thermo Hygrometer are frequently utilized in industries such as:

  • HVAC
  • Refrigeration
  • Manufacturing units
  • Research labs
  • Greenhouses
  • Museums
  • Clean rooms
Hanging Type Thermometer

 

Thermometer/hygrometer For Standing

Indoor Comfort and Air Quality
Thermo Hygrometer play a significant role in maintaining indoor comfort and air quality. The recommended level of humidity for indoor comfort is between 30-60%. By enabling the regulation of this optimal humidity range, meters can aid in preventing problems like mold growth, dust mites, and respiratory issues, ultimately enhancing the quality of indoor air. Additionally, elevated humidity levels can:

  • Counteract the cooling function of air conditioners, resulting in a warmer indoor environment
  • Heighten the workload for air conditioning systems
  • Diminish efficiency
  • Escalate energy usage.

 

Agriculture and Storage Environments
Humidity control in agriculture helps for achieving optimal yields, improving crop quality, reducing disease, preserving the quality of crops, and minimizing the spread of fungal pathogens. In food storage, elevated humidity levels can result in diminished product quality, spoilage, and the proliferation of mold and bacteria. By monitoring humidity levels and identifying areas where humidity levels are either excessively high or low, a humidity meter can assist in the maintenance of proper storage environments.

Benefits of Thermo Hygrometer

Preventing Health Problems

Maintaining the proper temperature and humidity levels in your home can help prevent the growth of mold and mildew, which can trigger allergies, respiratory problems, and asthma. Additionally, the ideal temperature and humidity levels for human comfort also happen to be the optimal ranges for preventing the growth of viruses and bacteria. Using a thermo hygrometer can help you monitor these levels and ensure that your indoor air quality stays within the ideal range for your health and comfort.

Identifying Sources of Indoor Air Quality Problems

A thermo hygrometer can help you identify sources of indoor air quality problems in your home. For instance, if you notice a sudden increase in humidity levels, it could be an indication of a leak or other water damage. Similarly, if the temperature in one area of your home is significantly different from the rest of the house, it could be a sign of a draft or other insulation problems. By identifying these issues early on, you can take steps to address them and prevent more serious indoor air quality problems down the line.

Optimizing Energy Usage

By monitoring your indoor temperature and humidity levels, you can optimize your energy usage and save money on your energy bills. For example, during the summer months, keeping your home within the ideal temperature range of 72-78°F can reduce the amount of energy used for air conditioning. In the winter months, keeping your home within the ideal temperature range of 68-72°F can reduce the amount of energy used for heating. Additionally, maintaining proper humidity levels can also help reduce the amount of energy used for heating and cooling by improving the efficiency of your HVAC system.

Sensors Types of Thermo Hygrometer

 

 

Thermometer
●Negative Temperature Coefficient (NTC) Thermistor
A thermistor is a thermally sensitive resistor that exhibits a continuous, small, incremental change in resistance correlated to variations in temperature. An NTC thermistor provides higher resistance at low temperatures. As temperature increases, the resistance drops incrementally, according to its R-T table. Small changes reflect accurately due to large changes in resistance per °C. The output of an NTC thermistor is non-linear due to its exponential nature; however, it can be linearized based on its application. The effective operating range is -50 to 250 °C for glass encapsulated thermistors or 150°C for standard thermistors.
●Resistance Temperature Detector (RTD)
A resistance temperature detector, or RTD, changes the resistance of the RTD element with temperature. An RTD consists of a film or, for greater accuracy, a wire wrapped around a ceramic or glass core. Platinum makes up the most accurate RTDs while nickel and copper make RTDs that are lower cost; however, nickel and copper are not as stable or repeatable as platinum. Platinum RTDs offer a highly accurate linear output across -200 to 600 °C but are much more expensive than copper or nickel.
●Thermocouples
A thermocouple consists of two wires of different metals electrically bonded at two points. The varying voltage created between these two dissimilar metals reflects proportional changes in temperature. Thermocouples are nonlinear and require a conversion with a table when used for temperature control and compensation, typically accomplished using a lookup table. Accuracy is low, from 0.5 °C to 5 °C but thermocouples operate across the widest temperature range, from -200 °C to 1750 °C.
●Semiconductor-based Temperature Sensors
A semiconductor-based temperature sensor is usually incorporated into integrated circuits (ICs). These sensors utilize two identical diodes with temperature-sensitive voltage vs current characteristics that are used to monitor changes in temperature. They offer a linear response but have the lowest accuracy of the basic sensor types. These temperature sensors also have the slowest responsiveness across the narrowest temperature range (-70 °C to 150 °C).

 

Hygrometers
●Electrical Hygrometers
These hygrometers use resistance or capacitance to measure the amount of humidity in the air. Electrical hygrometers can either be capacitive or resistive. Capacitive hygrometers have two metals plates that have air between them; the moister the air is, the more it affects the plates’ ability to store a static electric charge. The amount of humidity is indicated by the metal plates’ ability to store the electric charge. Resistive hygrometers, electricity passes through a piece of ceramic substance which is exposed to the air. The higher the humidity, the more water vapour condenses inside the ceramic, leading to a change in resistance.
●Psychrometers
This type of hygrometer comprises two thermometers: one that has a dry bulb, and one that has a wet bulb. When evaporation occurs in the wet bulb, the temperature drops to a lower level than that of the dry bulb. This difference in temperature is caused by the humidity in the air.Psychrometers are ideal for measuring outdoor humidity and areas which need dry storage conditions.
●Dew Point Hygrometers
Dew point hygrometers are used to measure the saturation of moist air in a gas. These hygrometers are used in areas where the smallest amounts of moisture need to be found. These devices are the most precise of all the hygrometers.

 
How to Calibrate a Thermo Hygrometer?

The standard way for a Thermo hygrometer and/or hygrometer calibration is to use a special chamber or a humidity generator, this is usually performed in a lab. The humidity generator can be varied to different ranges of humidity and temperature.
This method can be applied for the hygrometer calibration procedure. It is only the humidity that is calibrated. It is purely a comparison between a standard or more accurate Thermo-hygrometer and a regular thermo-hygrometer which we call a unit under calibration (UUC) where adjustment is not required unless the instruments have the capability to be adjusted.
 

Calibration Procedure:
(1)Check the thermo-hygrometer for any visual defects that can affect its accuracy. Discontinue calibration if any defect is noted.
(2)Clean the thermo-hygrometer with a soft cloth, carefully check the sensor for any signs of dust or contamination. Check if it has good batteries, replace low powered batteries.
(3)Prepare the measurement data sheet (MDS) and record all necessary details or information ( Brand, Model, serial #, etc).
(4)Calibration will be based on the room or ambient condition, so make sure that the room has a stable temperature. A confined space where air movements are very minimal is better.
(5)Place the thermo hygrometer and the Unit Under Calibration(UUC) together, the sensors of both instruments must be close together and at the same level, use a holder if necessary. Allow the units to stabilize for at least 30 minutes. Temperature and humidity will be obtained in the same way.
(6)Once stabilized, get the readings on their display.
(7)Perform 3 times and record readings on the MDS.
(8)Check readings if within the accuracy defined by the manufacturer, for the example above, accuracy = +/-3% for humidity and +/-1 DegC for temperature.
(9)If the readings are already within limits update the corresponding record, do labeling and sealing, and issue to the owner, otherwise, do necessary repairs or adjustment.

Frequently Asked Questions of Thermo Hygrometer

Q: What is the difference between a thermo hydrometer and a hygrometer?

A: The difference between a hydrometer and a hygrometer is only one letter in the name. This makes the difference between measuring the relative density of a liquid (the specific gravity of the liquid) with a hydrometer, or the humidity (the amount of water vapour in the air) in a given volume with a hygrometer.

Q: What is the difference between a thermometer and a hygrometer?

A: A hygrometer is simply a device that combines the functions of a thermometer and hygrometer in one product, for greater convenience and readability. Therefore, you have the temperature and relative humidity of the room displayed on a small box's screen (the Thermo-hygro).

Q: What was the purpose of the hygrometer?

A: A hygrometer measures the amount of humidity or moisture in the air. The unit of measurement is milliliters per cubic centimeter or the amount of fluid per volume of air.

Q: Where should a thermo hygrometer be placed?

A: The ideal place for the hygrometer is a general living area like your lounge or bedroom. Putting it in your kitchen or bathroom will show large rises and falls in humidity and temperature, for example when you are cooking or using the bath or shower. These won't give an accurate picture of the moisture in your home.

Q: How do you read a thermo hygrometer?

A: For digital hygrometers, simply read the humidity level displayed on the screen, which is presented as a percentage. If using an analog hygrometer, observe any changes in the natural or synthetic material, such as hair, used to measure humidity.

Q: What is the temperature range of thermo hygrometer?

A: This thermo hygrometer measures both humidity and temperature over the range of -19.9 to 69.9°C and 20 to 99%rh utilising the internal sensors. Utilising the external temperature sensor the temperature range is extended to -49.9 to 69.9°C.

Q: How do you calibrate a thermo hygrometer?

A: To most accurately calibrate a hygrometer or other humidity sensor, you need to generate and measure humidity at a variety of temperatures and humidity levels. To do this efficiently, you would use a humidity generator / calibrator. These measurements are compared with the measurements of the device under test (DUT).

Q: What is a good hygrometer reading?

A: Every home is different, but a level between 30 and 40 per cent humidity is typically ideal for keeping your home warm and comfortable in the winter, without leaving condensation on the windows. In the summer, that level can be higher, between 50 and 60 per cent.

Q: Do I need a hygrometer?

A: Hygrometers can also be useful for personal health. Dry air can be uncomfortable and air with too much moisture content can enable mold and pathogens to thrive. Inexpensive hygrometers can be used to monitor the humidity of a home, office, or workspace to improve air quality and prevent mold.

Q: How does hair thermo hygrograph work?

A: The hairs are bundled together and stretched between a fixed pin and movable pin. The movable pin is attached to a series of levers, which amplify the movement of the hairs. A pen is attached to the end lever, and this pen plots the movement of the lever on a chart, which is mounted on a rotating cylinder.

Q: Do cheap humidity meters work?

A: An inexpensive meter is probably helpful for just one thing: finding out if some spots are wetter than others. In other words, it's best used to obtain relative readings. You should NOT rely on a cheap meter if what you want is the actual moisture content of a piece of wood.

Q: Does thermostat measure humidity?

A: To make the most of your heating and air conditioning system, you'll need to avoid indoor humidity that is too high or too low. This is the result of most thermostats only having the ability to measure indoor temperature, but not relative humidity.

Q: What does 1.000 mean on a hydrometer?

A: In the standard hydrometer scale, known as the specific gravity scale, distilled water equals 1.000, the initial point of measurement. Liquids lighter than water are scaled below 1.000 specific gravity, and liquids heavier than water are scaled above 1.000 specific gravity.

Q: How can I check humidity without a hygrometer?

A: Pop two to three cubes of ice in a glass with water. Leave for four to five minutes. Check the results – if the glass is dripping with condensation that's an indicator that humidity levels are high. However, if there's no condensation at all, that indicates the air is too dry.

Q: Can a hygrometer be wrong?

A: Hygrometers need to be properly calibrated to provide accurate readings. If your hygrometers have not been calibrated or if they were calibrated improperly, it can lead to variations in their readings. Check the calibration instructions for each hygrometer and make sure they are set correctly.

Q: How do you tell if your house is dry or humid?

A: Place two or three ice cubes into a glass, add water and stir. Wait three to four minutes. If moisture does not form on the outside of the glass, the air is too dry; you may need a humidifier. If water has condensed on the outside of the glass, the level of relative humidity is high.

Q: Which is better digital or analog hygrometer?

A: Digital hygrometers are best because they are the most accurate. Most digital hygrometers provide a reading for temperature as well as humidity. Digital models take a watch battery. Some can even track fluctuations in temperature and humidity over long periods of time.

Q: How much should I spend on a moisture meter?

A: On the cheap end, you might shell out $30–$100. But a good quality moisture meter will cost you $250–$500 or more. And it's the quality meters that get the job done right. You can trust that the readings they give you are accurate and won't cause your projects to fail.

Q: What is a healthy humidity level?

A: Between 30% and 50%. According to the Environmental Protection Agency, the best indoor relative humidity falls between 30% and 50%, and it should never exceed 60%. Other studies suggest 40% to 60% is a better range. Regardless, 60% seems to be the agreed-upon threshold for indoor humidity. A humidistat.

Q: What are the three types of hygrometers?

A: (1)Electrical hygrometers. These hygrometers use resistance or capacitance to measure the amount of humidity in the air.
(2)Psychrometers. This type of hygrometer comprises two thermometers: one that has a dry bulb, and one that has a wet bulb.
(3)Dew point hygrometers. A dew point hygrometer is a device that measures the moisture content in the air. There are two types of dew point hygrometers: capacitance type and mirror-cooled type.

We're professional thermometer/hygrometer manufacturers and suppliers in China, specialized in providing high quality customized service. If you're going to wholesale thermometer/hygrometer made in China, welcome to get quotation from our factory. Good service and low price are available.

Wooden Weather Wall, Thermometer with Pen Holder, Hygrometer and Barometer

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