Platinum Resistance Thermometer Manufacturer,Supplier and Exporter in India
Product Code : EL-ELA-5462
Jlab Export is a leading Platinum Resistance Thermometer Manufacturer,and suppliers in India
Platinum Resistance Thermometer (code EL-ELA-5462) is a resistance thermometer in which a platinum wire of 2.8 ohms, wound on a mica frame, serves as the temperature sensor; temperature is found from the wire’s electrical resistance. Two platinum leads and two compensating leads are brought out to terminals, and the coil is enclosed in a Pyrex-type glass tube. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Measuring principle | Temperature determined from the electrical resistance of pure platinum wire |
| Sensing element | Platinum wire, resistance 2.8 ohms |
| Former | Mica frame |
| Leads | Two platinum wire leads and two compensating leads, with terminals |
| Enclosure | Pyrex-type (borosilicate) glass tube |
| Quality check | Each thermometer 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-ELA-5462 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Platinum Resistance Thermometer Used For?
Resistance thermometers, also called resistance temperature detectors (RTDs), rely on the steady rise of a metal’s resistance with temperature. Platinum is chosen because it is chemically stable and its resistance changes smoothly and reproducibly, so a measured resistance can be converted into a temperature. This instrument, with its platinum coil on a mica frame and a matching pair of compensating leads, is the classic form used in BSc physics practicals: measuring temperature with a Callendar and Griffiths bridge, finding the temperature coefficient of resistance of platinum, and comparing resistance thermometry with thermocouples.
The compensating leads follow the same path as the platinum leads, so the bridge can allow for the change in lead resistance as the leads warm or cool, which reduces that source of error in the reading. The glass tube protects the fine wire and the mica former during handling and immersion in a bath.
What to Specify When Ordering
- Quantity — the number of thermometers for your practical benches.
- Bridge — a Callender & Griffith Bridge is a separate item that can be quoted on the same enquiry.
- Other temperature sensors — thermocouples for comparison experiments are separate catalogue items.
Frequently Asked Questions
How does a platinum resistance thermometer measure temperature?
By measuring the electrical resistance of a piece of pure platinum wire, which rises with temperature in a reproducible way. The platinum wire itself is the temperature sensor.
What is the resistance of the platinum element?
The platinum wire has a resistance of 2.8 ohms and is wound on a mica frame.
Why does it have compensating leads?
Besides the two platinum leads there are two compensating leads. Because they share the same temperature conditions as the platinum leads, a bridge can allow for the leads’ own change in resistance and reduce its effect on the result.
What is the coil enclosed in?
A Pyrex-type borosilicate glass tube, which keeps the fine platinum wire and mica frame protected.
How is it different from a thermocouple?
A resistance thermometer measures a change in resistance, while a thermocouple produces a small voltage at the junction of two different metals. JLab lists a copper–constantan thermocouple separately for thermo-emf experiments.
What information is needed for an export quotation?
Send the quantity, destination country and port or city, the delivery terms you prefer such as FOB or CIF, any packing or labelling instructions, and a tender reference if one applies.
Who manufactures this thermometer?
JLab (Jain Laboratory Instruments Pvt Ltd) makes it at its Ambala works in Haryana, India, and quotes for it as the manufacturer.
OEM Manufacturer
JLab is the trading name of Jain Laboratory Instruments Pvt Ltd, a manufacturer of physics lab instruments in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The platinum resistance thermometer is wound and assembled at JLab’s own works, not purchased from a trader, so universities, colleges, dealers and importers buy from the factory; each thermometer is visually inspected before dispatch, and repeat orders come from the same maker. JLab exports worldwide and ships to buyers in every region — for example Latvia in Northern Europe, Mexico in North America, Saudi Arabia in the Middle East, Congo in Central Africa and Chile in South America. University tender buyers can see the JLab lab tenders page.
Related Thermometry Apparatus
- Callender & Griffith Bridge — a three-in-one bridge (Callendar and Griffiths bridge, Carey Foster bridge and potentiometer) for resistance thermometry.
- Copper Constantan Thermocouple — a copper–constantan couple on a Bakelite strip for thermo-emf experiments.
- Dial Type Resistance Box — constantan or manganin coils for setting known resistances.
Find more apparatus in the Educational Laboratory Apparatus range or the Laboratory Apparatus section.
Request a Quote
Enquire through the Add To Cart button on this page or the contact page, with the number of thermometers, any bridge or thermocouples to add, and the delivery destination.
Last updated: 15 October 2026
