Digital Ohmmeter 20K?
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Product Code : SCL-EAE-12251
Digital Ohmmeter 20KΩ (SKU SCL-EAE-12251) is a laboratory resistance meter that measures resistance up to 20 kΩ and shows the value as a digital reading in ohms or kilo-ohms. It is used in school and college physics and electronics labs, STEM classrooms and technical institutes to check resistors, coils, wires and circuit sections. Science Lab Supplies produces it at Plot 448, HSIIDC Industrial Area, Saha, Ambala, India, and supplies schools, colleges, tender contractors and distributors without a middleman.
Specifications
The table below lists every confirmed detail of this ohmmeter. In short, it is a digital instrument with a measuring range up to 20 kΩ, reading in Ω and kΩ, intended only for components or circuit sections that are switched off and isolated from any power source.
| Specification | Value |
|---|---|
| SKU | SCL-EAE-12251 |
| Instrument type | Digital ohmmeter |
| Quantity measured | Electrical resistance |
| Measuring range | Up to 20 kΩ (20,000 Ω) |
| Reading units | Ohms (Ω) and kilo-ohms (kΩ) |
| Display | Digital reading |
| Use condition | De-energised circuits or isolated components only |
| Scope | 1 x main unit |
| Manufacturer | Science Lab Supplies, Saha, Ambala, Haryana |
| Country of origin | India |
Applications and Experiments for the Digital Ohmmeter 20KΩ
The ohmmeter gives a direct resistance value, so students can check a resistor before building a circuit, compare measured and marked values, and confirm continuity in wires and coils. Its 20 kΩ range covers the resistors common in school physics lab equipment in India and basic electronics benches.
- Class 10–12 physics: checking resistances before Ohm’s law and series-parallel practicals, and comparing results with values set on a Resistance Substitution Box.
- Class 12 and B.Sc.: cross-checking the steps of a Resistance Box Electronic Type and the resistance of coils and wires.
- ITI and electronics training: testing components, open circuits and continuity on trainer boards.
- STEM labs: building resistor colour-code exercises around measured values.
Always switch off and disconnect power before measuring, and discharge any capacitor in the circuit first; resistance must never be measured on a live circuit.
Standard Scope of Supply
The Digital Ohmmeter 20KΩ is supplied as one main unit as described above. Test leads, probes, the power source and any other accessories for the model you choose are listed on the quotation, while resistance boxes and components for practice can be quoted as separate items.
Packing, MOQ and Lead Time
Quotations can be prepared for a single ohmmeter or a batch for every student group. Science Lab Supplies, a physics instruments supplier in India as well as a maker, states packing, delivery time and price for the quantity you name, and resistance boxes can be added to the same quote.
Science Lab Supplies holds an Importer-Exporter Code and can ship to buyers in Peru, Egypt, Iraq, Nigeria, Kenya and Ghana. To enquire, write via the contact page or the enquiry cart; buyers preparing a tender can start from the lab tender page.
Frequently Asked Questions
What does 20KΩ mean on this ohmmeter?
It means the meter reads resistance up to 20 kilo-ohms, which is 20,000 ohms. Resistors and coils above that value need a meter with a higher range, such as a multimeter with several resistance ranges.
Can the ohmmeter be used on a live circuit?
No. Resistance is measured only on circuits that are switched off and disconnected, or on components removed from the circuit. Measuring on a live circuit gives wrong readings and can damage the instrument.
How is it used in a resistance practical?
Students touch the leads across the resistor, wire or coil, read the value in Ω or kΩ from the display, and compare it with the marked value or with the result calculated from voltage and current.
Is Science Lab Supplies the manufacturer or a trader?
Science Lab Supplies manufactures this ohmmeter at its factory in Saha, Ambala, India. Quotations are prepared by the manufacturer itself, which keeps specifications and delivery details in one place for the buyer.
Related Resistance Meters and Apparatus
These products cover the rest of a resistance-measurement bench: other ohmmeters, a multimeter, an ammeter for Ohm’s law work, and resistance boxes and bridges whose values the ohmmeter can check. All of them can be quoted together with this meter.
- Ohm Meter — unbreakable ABS case with clear front cover, run on a 1.5 V AA cell.
- Ohmmeter Series Type 0-100 ohms — series-type meter with its dry cell fixed to the stand.
- Digital Multimeter — resistance from 200 Ω to 2000 kΩ in five ranges, with voltage and current.
- LCD Display Digital Ammeter — digital current reading in A or mA on an LCD.
- Decade Resistance Box, Dial Type — 1% metal film elements in two, three or four dials.
- Resistance Box Plug Type (Constantan / Manganin Coil) — coils on bakelite spools with brass blocks in a wood box.
- Post Office Box Plug Type — 3-ratio or 4-ratio box measuring 0.1 to 1,111,000 Ω.
- Meter Bridge or Wheatstone Bridge With Pencil Jockey — 24 SWG constantan wire over a wooden metre scale.
Browse the full Electrical and Electronics range, the Lab Meters range for further measuring instruments, or all physics lab equipment.
Last updated: 9 October 2026
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