Demonstration Bell Manufacturer,Supplier and Exporter in India
Product Code : EL-ELA-5246
Jlab Export is a leading Demonstration Bell Manufacturer,and suppliers in India
Demonstration Bell (code EL-ELA-5246) is an electric bell model for showing a class how an electric bell works, with every part in plain view on a wooden board. It runs on 3–4 volts DC, is simple to operate, and rings loudly enough to be heard from far away, which suits whole-class physics demonstrations in schools and colleges. It is made by Jain Laboratory Instruments Pvt Ltd (JLab) at its works in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Purpose | Demonstrating the working of an electric bell |
| Construction | All parts easily visible, mounted on a wooden board |
| Operating supply | 3–4 volts DC |
| Operation | Easily operated |
| Sound | Loud — can be heard from far away |
| Quality check | Each bell is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 7–10 working days |
| Product code | EL-ELA-5246 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
How Does It Compare with Other JLab Bells?
| Item | Supply (as listed) | Other listed details |
|---|---|---|
| This demonstration bell (EL-ELA-5246) | 3–4 V DC | All parts visible on a wooden board; loud; easily operated |
| Bell Electric | 3–12 V AC/DC or 3–4.5 V AC/DC models | Dome gong about 75 mm; detachable Bakelite cover; silver contacts |
| Electric Bell Buzzer | 4–6 V AC or DC | Miniature buzzer |
| Bell in Bell Jar | 4–6 V AC/DC | Bell hung inside a bell jar on a vacuum pump plate, to show that sound needs a medium |
Choose this model to teach how the bell itself works, because nothing is hidden under a cover. Pick the covered Bell Electric where the bell is only a signal, and the bell-in-jar set for the sound-in-vacuum experiment.
What Is the Demonstration Bell Used For?
An electric bell is the classic example of an electromagnet at work. When the circuit is switched on, current through the coils magnetises the core, which pulls the soft-iron armature so the hammer strikes the gong; that movement breaks the contact, the electromagnet lets go, a spring returns the armature, the contact closes again, and the cycle repeats so the bell keeps ringing. With every part exposed, students can watch this make-and-break action in lessons on the magnetic effect of current in middle-school science and class 10 physics.
Connect it to two dry cells in series or to a battery eliminator set within 3–4 V DC, with a switch or tapping key in the circuit so the bell rings only when needed. Keep the supply within the listed range and keep the contact points clean.
What to Specify When Ordering
- Quantity — the minimum order is 10 units.
- Power and circuit parts — add cells or a battery eliminator, leads and a tapping key.
Frequently Asked Questions
What voltage does the demonstration bell need?
3–4 volts DC. Two dry cells in series, or a battery eliminator set within that range, will run it.
How does it differ from the Bell Electric?
This model is built for demonstration, with all parts visible on a wooden board and a 3–4 V DC supply. The Bell Electric is listed with a detachable Bakelite cover, a dome gong of about 75 mm and AC/DC models.
Who manufactures this demonstration bell?
JLab — Jain Laboratory Instruments Pvt Ltd — makes it at its works in Ambala, Haryana, India, and quotes for it directly.
OEM Manufacturer
Jain Laboratory Instruments Pvt Ltd, which trades as JLab, is a physics demonstration and school lab equipment manufacturer in India, incorporated in 2017 and based on Hargolal Road, Ambala, Haryana. The demonstration bell is assembled at JLab’s own works rather than bought in from a trader, so schools, colleges, dealers and importers buy it factory-direct and repeat orders come from the manufacturer. JLab exports worldwide and ships to buyers in every region — for example Eswatini in Southern Africa, Jordan in the Middle East, Armenia in Eastern Europe, Sudan in North Africa and Singapore in Southeast Asia.
Power and Circuit Accessories
- Battery Eliminator — supplies DC power in place of batteries.
- Tapping Key — a momentary-contact key that closes the circuit only while it is pressed.
- Connecting Leads — plastic-coated conducting wires with connectors.
- Electric Bell — a printed physics wall chart on the electric bell, for the same lesson.
See the Educational Laboratory Apparatus range or the full Laboratory Apparatus range.
Request a Quote
Quotes come direct from the manufacturer. Use the Add To Cart enquiry button on this page, or send the quantity (minimum 10 units), any power supplies or leads to add and your delivery location through the contact page.
Last updated: 9 October 2026
