Student Potometer ‘H’ type

Product Code : SCL-LG-11979

Student Potometer ‘H’ type (SKU SCL-LG-11979) is a compact glass potometer that measures how fast a cut leafy shoot takes up water, giving an indirect estimate of transpiration. An air bubble travels along a graduated capillary as the shoot draws water, and students time its movement. It is built for hands-on class work in senior-school biology and college botany. Science Lab Supplies furnishes it from Ambala, India to schools, colleges, training institutes, tender contractors and distributors.

Specifications

The H-shaped glass body brings the plant connection, a water reservoir section and a graduated capillary together in one piece. Water from the reservoir returns the bubble to its start for a repeat trial. Bore, scale length, graduation interval and glass grade are not given in the listing and are confirmed on the quotation.

Applications and Experiments for the Student Potometer ‘H’ type

The potometer turns invisible water movement through a plant into a bubble students can follow on a scale. By changing one factor at a time, such as light, moving air, humidity or temperature, and timing the bubble over equal intervals, a class can compare transpiration rates and discuss the transpiration stream.

• NCERT Class 10 biology (life processes): transport of water and transpiration in plants.
• NCERT Class 11 biology (transport in plants): factors affecting the rate of transpiration.
• B.Sc. botany plant-physiology practicals: water uptake under still and moving air.
• Calculating bubble distance per minute and graphing the results.

Cut the shoot under water, keep every joint airtight, and handle the thin glass ends carefully when fitting tubing.

Standard Scope of Supply

The listing covers one Student Potometer ‘H’ type glass apparatus. A plant shoot, connecting tubing, rubber bung, support stand, clamp, timer and cutting tools are not confirmed as included, and any of these can be requested on the quotation.

Packing, MOQ and Lead Time

Because it is meant for student groups, the potometer is often quoted in class sets, though a single piece can also be ordered. Each quotation gives packing, delivery time and price for the number you need, and stands or clamps can be added for school biology lab equipment in India on one order.

Science Lab Supplies holds an Importer-Exporter Code and, as a registered exporter, is able to ship to buyers in Bangladesh, Zambia, Rwanda, South Africa, Qatar and Sri Lanka. Ask questions on the contact page, list items in the enquiry cart, or see the lab tender page when buying by tender.

Frequently Asked Questions

How is the H type different from other potometers?
It combines the plant connection, reservoir and capillary in one compact H-shaped glass piece. The Farmers Potometer is built on a wide-mouth bottle with a three-hole stopper, and Ganong’s Potometer uses a horizontal capillary with a stopcock.

Does it measure transpiration directly?
No. It measures water uptake, which is used as an estimate of transpiration because a small part of the water absorbed is retained or used by the plant.

Who supplies the Student Potometer ‘H’ type?
Science Lab Supplies supplies it from Ambala, India, and its quotation covers packing and delivery for single pieces, class sets and tender quantities.

Why cut the shoot under water?
Cutting under water stops air entering the xylem and breaking the water column, which would slow or stop bubble movement.

Related Potometers and Plant Physiology Apparatus

Schools often keep more than one potometer design and teach transpiration beside photosynthesis and respiration. These four apparatus from the same range support those practicals and can share a quotation with the H-type potometer.

• Farmers Potometer — bottle-based design with funnel reservoir.
• Ganong’s Potometer — horizontal capillary with stopcock reset.
• Wilmott’s Bubbler — photosynthesis by bubble counting.
• Respirometer with Stand — respiration in germinating seeds.

Browse the full Lab Glassware range or all school lab equipment.

Last updated: 25 September 2026