Student Potometer ‘H’ type

Product Code : SCL-LG-11979

Student Potometer ‘H’ type (SKU SCL-LG-11979) is a 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 suits hands-on class work in senior-school biology and college botany. Science Lab Supplies, at Ambala in India, can price it per piece or as class sets for schools, colleges, tender contractors and distributors.

Specifications

The specification of the H-type potometer is laid out row by row below. In short, the H-shaped glass body brings the plant connection, a water reservoir and a graduated capillary together in one arrangement, and reservoir water returns the bubble to its start; bore, scale length, graduation interval and glass grade 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, with room humidity read on a Digital Thermo-Hygrometer.
• B.Sc. botany plant-physiology practicals: water uptake under still and moving air, with wind speed checked on a Simple Cup Anemometer.
• 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 Rubber Tube (Laboratory) or other tubing.

Standard Scope of Supply

The supply is one Student Potometer ‘H’ type glass apparatus. A plant shoot, connecting tubing, rubber bung, support stand, clamp, timer and cutting tools can be prepared by the laboratory or added to the quotation as separate lines, so the whole set-up is priced together.

Packing, MOQ and Lead Time

The potometer can be quoted as a single piece or in class sets for student groups. Each quotation gives packing, delivery time and price for the number you need, and stands or clamps can be added so school biology lab equipment in India arrives 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. Tell us your class-set size on the contact page, collect the potometers and stands in the enquiry cart, or follow the lab tender page for a tendered purchase.

Frequently Asked Questions

How is the H type different from other potometers?
It combines the plant connection, reservoir and capillary in one 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 rather than lost as vapour.

Who supplies the Student Potometer ‘H’ type?
Single pieces, class sets and tender quantities of this potometer are quoted by Science Lab Supplies, an Ambala-based supplier in India that also arranges packing and delivery.

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 and spoil the reading for that trial.

Related Transpiration and Plant Physiology Items

Water uptake links to osmosis, leaf structure and the other potometer designs. These items from the Lab Glassware and Biology Lab Equipment ranges let a class compare methods and see where the water goes, and any of them can share one quotation with the H-type potometer.

• Farmers Potometer — bottle-type potometer with a funnel-type water reservoir.
• Ganong’s Potometer — plant chamber and stopcock-controlled reservoir on a graduated capillary.
• Potometer Apparatus — 1 mm capillary bore, mounted by spring clips on a varnished wooden base.
• Potometer — water bottle, glass plant support and graduated measuring tube.
• Kit for Demonstration of Transpiration in Plants — tripod, 600 ml beaker, colouring liquid and 20 x 200 x 2 mm glass tube.
• Dutrochet's End Osmometer for Demonstrating Osmotic Pressure — end osmometer, beaker and NaCl to show water entry by osmosis.
• Transverse Section of the Leaf — 300 x 400 mm PVC model with stomata, xylem and phloem.
• Wilmott’s Bubbler — compares photosynthesis under light and reduced-light conditions.

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

Last updated: 9 October 2026