Potometer
Product Code : SCL-BLE-11636
Potometer (SKU SCL-BLE-11636) measures the rate at which a plant absorbs water. It consists of a water bottle, a glass support for the plant and a graduated tube for measurement, and it demonstrates transpiration rates and water absorption by a cut shoot under different external conditions. It is a standard plant-physiology apparatus for school and college biology labs. Science Lab Supplies, operating from Ambala, India, supplies it to schools, colleges, tender contractors and distributors.
Specifications
The potometer is built from three parts, each listed in its own table row: a water bottle that serves as the reservoir, a glass support that holds the cut shoot, and a graduated tube on which water uptake is read. Its measuring purpose and demonstration use are also listed.
| Specification | Value |
|---|---|
| SKU | SCL-BLE-11636 |
| Reservoir | Water bottle |
| Plant holder | Glass support for plants |
| Measuring tube | Graduated tube |
| Measures | Rate of water absorption in plants |
| Demonstrates | Transpiration rates and water absorption by a cut shoot under various external conditions |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Potometer
A freshly cut shoot draws water from the bottle, and the movement along the graduated tube shows how fast it is taken up, an indirect measure of transpiration. The potometer fits CBSE/NCERT Class 10 transportation and Class 11 transport-in-plants topics and B.Sc. plant-physiology practicals.
- Class 10 and Class 11 biology: measuring the water uptake rate of a leafy shoot in still air.
- Comparing conditions such as light, moving air or humidity, with room humidity recorded on a Psychrometer (with Thermometer).
- Sealing the shoot airtight through one of the Rubber Stoppers of Various Diameters with Holes before readings begin.
Cut the shoot under water and fit it without air gaps; a single air bubble in the shoot's water path will block uptake and spoil the reading.
Standard Scope of Supply
The potometer is supplied as a water bottle, a glass plant support and a graduated measuring tube. Plant shoots, sealing grease and a timer are not included; the school provides them, and stoppers or other plant-physiology apparatus can be added to the same quotation if needed.
Packing, MOQ and Lead Time
Prices can be quoted for a single potometer or for a class set. Every quotation from Science Lab Supplies states the packing, delivery time and price that apply to the requested quantity, and stoppers or other transpiration apparatus can be quoted alongside so the order arrives as one consignment.
Science Lab Supplies has an Importer-Exporter Code and can ship to buyers in Egypt, Iraq, Nigeria, Kenya, Ghana and Ethiopia. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Quantities and delivery details can be shared on the contact page or in the enquiry cart, and bid documents are handled through the lab tender page.
Frequently Asked Questions
What does a potometer measure?
It measures the rate at which a cut shoot absorbs water. Because most absorbed water is lost from the leaves, the rate is used to compare transpiration under different conditions such as light, wind and humidity.
What parts make up this potometer?
It consists of a water bottle, a glass support that holds the plant, and a graduated tube for measuring water uptake. The shoot itself is cut fresh by the class before each run.
Who supplies the Potometer?
The Potometer is supplied by Science Lab Supplies of Ambala, India. Schools, colleges, tender contractors and distributors receive their quotation directly, with packing and delivery details for the quantity they ask for.
How can students get reliable readings?
Cut the shoot under water, seal every joint, and let the shoot settle for a few minutes. Then take several readings over equal time intervals and use the average for each condition.
Related Potometers and Plant-Water Apparatus
These products give alternative potometer designs and other ways to study water and salt movement in plants. Ordering a mix of them on one quotation lets students compare methods and see how osmosis, absorption and transpiration fit together in the same plant-physiology unit.
- Potometer Apparatus — 1 mm capillary bore and glass stopcock on a varnished wooden base.
- Student Potometer 'H' type — H-type layout with plant connection, reservoir section and graduated capillary.
- Farmers Potometer — bent capillary tube with a funnel-type water reservoir.
- Ganong's Potometer — bubble distance read on a graduated capillary scale over a fixed time.
- Kit for Demonstration of Transpiration in Plants — tripod, 600 ml beaker and colouring liquid.
- Kit for the Demonstration of Absorption of Mineral Salts in Plants — mineral salt and flasks for nutrient-uptake work.
- Dutrochet's End Osmometer for Demonstrating Osmotic Pressure — shows how plants absorb water through osmosis.
Browse the full Biology Lab Equipment range, the Lab Glassware range, or all school lab equipment.
Last updated: 9 October 2026
