Compass. Manufacturer,Supplier and Exporter in India

Compass. (Product Code: SCL111/1.4) is a 50 mm diameter magnetic compass for general laboratory use. Its magnetised needle, usually marked at the North end, swings freely to line up with the Earth's magnetic field, so students can read direction against a dial showing the cardinal points. Physics teachers use it for magnetism lessons and geography staff for basic direction-finding, making it a staple item of school physics lab equipment in India. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala.

Specifications

Typical Use

In the physics lab the compass is placed at different positions around a bar magnet or a current-carrying wire to show how the needle turns with the local field, which helps students see that a magnetic field has direction as well as strength. Laid flat on the bench away from other magnets, it also demonstrates that a freely pivoted magnet settles along the north–south line. Used together with a bar magnet, a staple of school magnetism practicals in India, it also lets a class check which end of an unmarked magnet is its north pole.

Outdoors, the same instrument introduces map orientation: students hold it level, let the needle settle, turn the body until North on the dial meets the needle, and then read off the direction of a landmark. A short history note fits well here too — the magnetic compass greatly improved the safety and efficiency of travel, especially at sea. Keep it away from steel furniture, loudspeakers and live wiring during readings, since these pull the needle off true magnetic north.

Manufacturer

ScienceLab is the brand under which Jain Scientific Equipments Private Limited produces and sells teaching apparatus from its base in Ambala, Haryana. You can learn more about the company, its manufacturing work and its range on the company profile.

Related Laboratory Equipment

Apparatus that fits naturally into the same magnetism or direction-finding lesson:

• Bar Magnet (Plastic) — the usual magnet for tracing field direction with a compass
• Steel Horseshoe Magnet — lets students compare the field between two close poles
• Plotting Compass, Single Glass Face — a plotting compass for marking field-line paths on paper
• Compass 1 — a further compass listing in the same range for larger class orders
• Tape — measures distances between landmarks during outdoor orientation work

More general teaching apparatus is listed in our Laboratory Equipment category.

Frequently Asked Questions

What size is the compass?
It has a 50 mm diameter, large enough for a small group to read the dial together on the bench.

What is the case made of?
The needle is mounted in an aluminium case with a glass top; the listing also describes the construction as aluminium ply type, 18 mm, with glass on both sides. Contact us if you need a photograph or drawing of the current version.

Why does my needle point the wrong way indoors?
Nearby iron or steel, magnets and electrical cables distort the local field. Move the compass clear of them and keep it level so the needle can swing freely.

Can it be used to show magnetic field direction around a magnet?
Yes. Placing it at several points around a magnet shows how the needle turns with the field; for drawing detailed field lines on paper a smaller plotting compass is easier to move step by step.

How should it be stored?
Store it flat, away from strong magnets, so the needle does not stay pressed against one side and the glass is not scratched.

Do you supply compasses in class quantities?
Yes, we quote for schools, colleges and distributors across India and international markets; share your quantity and delivery location when you enquire.

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Last updated: 24 September 2026