Ruler, SI Relationship Manufacturer,Supplier and Exporter in India

Ruler, SI Relationship (Product Code: SLE/ME/29) is a teaching ruler used to show how the SI length units, decimetres, centimetres and millimetres, relate to one another in primary and secondary science and maths lessons. One edge is laid out to show that relationship, the other is calibrated and numbered in millimetres, and molded-in handles make it easy to hold, a useful addition to mathematics lab kits. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.

Key Details

What Is an SI Relationship Ruler Used For?

Pupils often learn that 10 mm make a centimetre and 10 cm make a decimetre as facts to memorise. The relationship edge of this ruler makes those conversions visible: learners can see one decimetre divided into centimetres and each centimetre divided into millimetres. Teachers use it for unit-conversion lessons, estimation games and to introduce the decimetre, a unit students rarely meet elsewhere.

Once the idea is clear, students turn to the millimetre edge for real measurements: the sides of shapes, the length of a leaf or seed, or a line on a graph. Holding the ruler by its molded-in handles keeps fingers off the scales, and reading at eye level avoids parallax errors.

OEM Manufacturer

Jain Scientific Equipments Private Limited, which trades as ScienceLab, manufactures the Ruler, SI Relationship as the OEM at its licensed factory at Saha, Ambala, Haryana, India. Buyers get it from the manufacturer directly, not through a middleman, which keeps communication simple for schools, dealers and importers ordering class quantities. Follow-up orders to match an earlier purchase are handled by the manufacturer itself. Read more on the ScienceLab company profile.

Related Measuring Equipment

Tools that extend the same measuring lessons:

• Ruler, White Vinyl — a short inch-and-millimetre ruler with temperature scales on the back.
• Meter Stick, White — shows how decimetres build up to a full metre.
• Metersticks — hardwood sticks for longer measurements.
• Ruler, Plastic, Blackboard, 100cm — a large ruler for teacher demonstrations.
• Caliper Vernier (Metal) — for readings finer than a millimetre.

Find more in the Measuring equipment category.

Frequently Asked Questions

What does SI Relationship mean on the Ruler, SI Relationship?
On the Ruler, SI Relationship (SLE/ME/29), one edge is marked to show how decimetres, centimetres and millimetres relate within the SI metric system. Students see each larger unit divided into the next smaller one instead of memorising conversion factors.

Which edge of the Ruler, SI Relationship is used for measuring?
The Ruler, SI Relationship has a second edge calibrated and numbered in millimetres for ordinary measurement. Students can explore unit relationships on one edge, then turn the ruler to take real readings of objects, drawings and specimens on the other.

Will the markings on the Ruler, SI Relationship wear off?
The markings on the Ruler, SI Relationship are hot-stamped, easy to read and described as markings that will not wear off. That suits rulers shared between classes year after year, where heavy handling would rub away surface print.

What are the handles on the Ruler, SI Relationship for?
The molded-in handles on the Ruler, SI Relationship let students and teachers lift and position it without covering the scales with their fingers, which helps when demonstrating unit relationships to a group or holding the ruler steady on a bench.

Who manufactures the Ruler, SI Relationship?
The Ruler, SI Relationship is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), which is the OEM and makes it at its own factory in Saha, Ambala, Haryana, India, for schools, colleges, dealers and importers in India and international markets.

How long is the Ruler, SI Relationship?
The overall length of the Ruler, SI Relationship is not listed on this page. Ask for the exact dimensions through the contact page when requesting a quotation, and say how many rulers you need per class.

Request a Quote

Quotes for the Ruler, SI Relationship come straight from the manufacturer. Use the contact page or add the ruler to the enquiry cart along with your other classroom measuring items.

Last updated: 24 September 2026