Demonstration Meter Interscale
Product Code : LSK-LM-11132
Demonstration Meter Interscale (SKU LSK-LM-11132) is a large-format demonstration meter with a scale about 200 mm long, sized so that a teacher can show current and voltage readings to a whole class from the front bench. It suits secondary school electricity lessons and college physics demonstrations. Science Lab Supplies offers it from Ambala, India, for schools, colleges, training institutes, tender contractors and distributors.
Specifications
All known specifications are listed in the table below. In short, the meter is built on a basic movement giving full-scale deflection at 5 mA and 100 mV, reads to an accuracy of ±2.5% FSD on a scale of about 200 mm, and measures 300 x 150 x 300 mm with a weight of roughly 2 kg.
| Specification | Value |
|---|---|
| SKU | LSK-LM-11132 |
| Type | Demonstration meter, interscale model |
| Basic movement | 5 mA – 100 mV full-scale deflection |
| Accuracy | ±2.5% FSD |
| Scale length | 200 mm (approx.) |
| Dimensions | 300 x 150 x 300 mm |
| Weight | 2 kg (approx.) |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Demonstration Meter
The meter lets a teacher measure current or voltage in a demonstration circuit while every student reads the same pointer. Its 5 mA, 100 mV basic movement also makes it a clear teaching example of how a sensitive movement becomes an ammeter or voltmeter, a topic found in most lists of school physics lab equipment in India.
- Class 10 science (NCERT Electricity): showing current and potential difference in a simple circuit powered by a Laboratory Battery Eliminator.
- Class 12 physics: demonstrating conversion of a galvanometer movement into an ammeter or voltmeter with a shunt or series resistance set on a Resistance Box.
- Ohm's law demonstrations in which the current is varied with a Rheostat Nichrome Wire Groove Type and the change is shown to the whole class.
- Teacher training sessions on reading analogue scales and on the meaning of full-scale deflection and accuracy class.
Standard Scope of Supply
The Demonstration Meter Interscale is supplied as a single meter with the basic movement, scale and dimensions given above. Any shunts, multipliers, power supplies or connecting leads that a lesson needs are confirmed separately, and each one requested is itemised on the quotation so the buyer can see exactly what will be packed.
Packing, MOQ and Lead Time
One meter for a single demonstration bench can be quoted just as readily as a batch for several schools. Each quotation from Science Lab Supplies gives the packing, delivery time and price for the quantity you name, and power supplies, rheostats or resistance boxes may be added to the same quote.
With an Importer-Exporter Code in place, Science Lab Supplies can ship to buyers in Nigeria, Kenya, Ghana, Ethiopia, Tanzania and Uganda. Science Lab Supplies is registered for GST (GSTIN 06ADEPJ0574F2ZU). Send your requirement via the contact page or the enquiry cart; tender documents can go through the lab tender page.
Frequently Asked Questions
What does a 5 mA – 100 mV basic movement mean?
The pointer reaches full scale when 5 mA flows through the movement, which corresponds to 100 mV across it. Higher current or voltage ranges are obtained by adding a suitable shunt or series resistance.
How accurate is the Demonstration Meter Interscale?
It is specified at ±2.5% of full-scale deflection, which is suitable for classroom demonstrations where the aim is to show clear trends and approximate values rather than precision measurement.
Is it large enough for a classroom?
Yes. The scale is about 200 mm long and the meter measures 300 x 150 x 300 mm, so it can stand on the front bench and be read by students seated well back from it.
Who supplies the Demonstration Meter Interscale?
The meter is supplied by Science Lab Supplies from Ambala, India. Schools, colleges and contractors can order it alone or with other demonstration meters and circuit items, and every quotation lists each item separately.
Related Demonstration and Laboratory Meters
These meters and circuit apparatus cover the same current, voltage and resistance topics, from other demonstration meters for the front bench to student meters for group practicals, so a school can match the teacher's meter with bench meters on one quotation.
- Demonstration Meter Vertical — shows the working of a moving coil meter, on a wooden stand.
- Demonstration Meter Horizontal — horizontal type in a transparent case with a bakelite base.
- Basic Meter — slide-scale meter for 100 mV–50 V and 100 µA–5 A, with a Teacher’s Guide.
- Ammeter — DC meter on a bakelite or acrylic stand with lock-type terminals.
- Voltmeter — DC meter on a bakelite or acrylic stand, packed in a card box.
- Portable Meter — moving coil meter with a 144 mm mirror scale for polytechnic labs.
- Ohms Law Apparatus — two moving coil meters and a wire-wound potentiometer in one unit.
Browse the full Lab Meters range, the Electrical and Electronics range for power supplies and resistance boxes, or all physics lab equipment.
Last updated: 9 October 2026
