Hygrometer Wet and Dry Manufacturer,Supplier and Exporter in India
Product Code : EL-SLE-4613
Jlab Export is a leading Hygrometer Wet and Dry Manufacturer,and suppliers in India
Hygrometer Wet and Dry (code EL-SLE-4613) is a wet-and-dry bulb instrument for measuring the humidity of the atmosphere, built with two mercury thermometers: one with a dry bulb and one with a wet bulb. Evaporation from the wet bulb cools it below the dry-bulb reading, and the gap between the two shows how humid the air is. It is used in school science and geography labs and weather records. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Measures | Humidity of the atmosphere |
| Thermometers | Two mercury thermometers — one dry bulb, one wet bulb |
| Working principle | Evaporation of water from the wet bulb lowers its temperature compared with the dry bulb |
| Quality check | Each hygrometer is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-SLE-4613 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Hygrometers?
| Model | Type (as listed) | Other listed details |
|---|---|---|
| This hygrometer (EL-SLE-4613) | Wet and dry bulb, two mercury thermometers | Humidity found from the difference between wet-bulb and dry-bulb readings |
| Psychrometer | Wet and dry bulb, red-liquid filled | Recessed bulbs; −5 to 50 °C in 1° divisions; water reservoir for the wick; carrying case and plastic chart |
| Digital Hygrometer with Temperature | Digital | Digital temperature display; measures humidity and temperature of the air |
| Weather Station Thermometer Hygrometer | Thermometer with hygrometer | Outside temperature and relative humidity read from inside the classroom; large figures |
Choose the wet-and-dry hygrometer when students should see the evaporation principle and work out humidity themselves from two thermometer readings. The digital and weather-station models give a direct reading, and the psychrometer adds a water reservoir and carrying case for fieldwork.
What Is the Wet and Dry Hygrometer Used For?
Water evaporates from the wet bulb faster in dry air than in humid air, and evaporation takes heat, so the wet-bulb thermometer reads lower than the dry-bulb one. To find relative humidity, read both thermometers, subtract the wet-bulb reading from the dry-bulb reading, and look up that difference against the dry-bulb temperature in a humidity table. When the air is saturated the two readings are equal; the bigger the difference, the drier the air. The instrument is a standard part of school weather records and geography practicals on humidity in class 11, illustrates the class 9 science idea that evaporation causes cooling, and is also used to keep an eye on humidity in labs, stores and greenhouses.
Hang or stand it in the shade with free air movement, away from heaters and direct sun, and keep the wet bulb's covering clean and moist with clean water. Each thermometer contains mercury, so handle the instrument with care; if a thermometer breaks, do not touch the mercury or vacuum it up, and follow your local hazardous-waste guidance.
What to Specify When Ordering
- Quantity — the minimum order is 10 units.
- Scale and table — if you need a particular temperature range, scale division or a humidity table with the instrument, state it so JLab can confirm what is supplied.
- Import rules — mercury-filled instruments are restricted in some countries; check yours, and consider the digital hygrometer if mercury is not allowed.
- Companion weather instruments — add other weather-station items to the same enquiry.
Frequently Asked Questions
How does a wet and dry hygrometer measure humidity?
Through evaporation. Water evaporating from the wet bulb cools it, so it reads lower than the dry bulb, and the size of the difference depends on how dry the air is.
What thermometers does it use?
Two mercury thermometers — a dry bulb that reads the air temperature and a wet bulb that reads lower because of evaporation.
How do I get relative humidity from the two readings?
Subtract the wet-bulb reading from the dry-bulb reading, then find that difference against the dry-bulb temperature in a humidity table. Whether a table comes with the instrument is not stated in this listing, so ask JLab when you order.
What is the temperature range of the thermometers?
The scale range and divisions are not given in this listing. Ask JLab to confirm them with your quotation.
Can it be exported to any country?
Mercury-filled instruments are restricted in some countries, so check your import rules first. Where mercury is not allowed, the digital hygrometer with temperature display is an alternative.
Who manufactures this hygrometer?
Jain Laboratory Instruments Pvt Ltd (JLab) makes it at its works in Ambala, Haryana, India, and quotes for it directly.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of weather instruments, physics apparatus and school lab equipment in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The hygrometer is made at JLab's own works rather than bought from a trader, so schools, colleges, dealers and importers buy factory-direct, each unit is visually inspected before dispatch, and repeat orders are handled by the manufacturer. JLab exports worldwide and ships to every region — France in Western Europe, Serbia in Southern Europe, Bulgaria in Eastern Europe, Sudan in North Africa and Botswana in Southern Africa are a few examples. Tender buyers can visit the JLab lab tenders page.
Humidity and Weather Instruments
- Psychrometer — a wet-and-dry instrument with recessed bulbs, water reservoir, carrying case and chart.
- Digital Hygrometer with Temperature — direct digital reading of humidity and temperature.
- Weather Station Thermometer Hygrometer — outside temperature and humidity read from inside the classroom.
- Maximum Minimum Indoor Outdoor and Hygrometer — indoor and outdoor maximum, minimum and current temperature with indoor humidity on dual LCD screens.
See the Weather Equipment range or the full School Lab Equipment range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), any scale or table requirements, and your delivery country through the contact page.
Last updated: 4 October 2026
