Joulemeter / Wattmeter, Digital Manufacturer,Supplier and Exporter in India

Joulemeter / Wattmeter, Digital (Product Code: SLE/PHY/195) is a combined digital energy and power meter used to measure the joules and watts taken up by an AC or DC load in school and college electricity and heat practicals. Light and compact, it suits both class demonstration and student use, reading energy from 1J to 999,999J (or 1mJ to 999,999mJ) and power from 200mW to 200W. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, within its physics lab equipment range for India and international markets.

Specifications

What Is the Digital Joulemeter Used For?

Connected between a low-voltage supply and a load, the meter totals the energy transferred while its built-in timer runs. Students can then find the specific heat capacity of a metal block or liquid, compare electrical energy input with temperature rise, or work out the efficiency of a small motor or lamp without multiplying voltage, current and time by hand. Because it reads AC as well as DC at frequencies up to 500Hz, the same instrument works on a transformer output or a DC bench supply.

For demonstrations, the pair of 4mm instantaneous-power sockets can be taken to a voltmeter or data logger so the class sees power change as a load is switched in or out. In routine use keep the input within 15V AC or 21V DC, never exceed the absolute maximum of 35V DC or 24V AC, and keep the load current at or below 10A. These physics instruments from a supplier in India give schools a direct reading of energy and power in one bench unit.

What to Specify When Ordering

• The model: this combined joulemeter and wattmeter, or the energy-only student joulemeter listed below
• Your mains supply, since the unit is listed for 220V AC, 50/60Hz
• How many units you need for demonstration benches and for student groups
• Any 4mm leads, power supplies or heater loads you want priced in the same quotation

Supplier

Jain Scientific Equipments Private Limited trades as ScienceLab and sources this digital joulemeter/wattmeter for schools, colleges, training institutes, dealers and importers. One enquiry can cover the meter together with the supplies, leads and calorimetry items your energy practical needs. For vendor registration, the supplying company is Jain Scientific Equipments Private Limited (CIN U29309HR2020PTC087597, GSTIN 06AAECJ8618A1ZT). You can read more about us on the ScienceLab company profile.

Related Physics Lab Equipment

These items are commonly used with the joulemeter/wattmeter in energy and power experiments:

• Joulemeter, Student Digital — an energy-only digital meter for student groups
• Immersion Heater — a low-voltage heating load whose energy input the meter can record
• Calorimeter Set, Aluminium — for specific heat capacity measurements
• Power Supply, Stepped — an AC/DC bench source for the load circuit
• Stackable Leads — 4mm leads to connect supply, meter and load

Browse the full range of Physics Lab Equipment.

Frequently Asked Questions

What does the Joulemeter / Wattmeter, Digital measure?
The Joulemeter / Wattmeter, Digital measures both the energy taken up by a load, from 1J to 999,999J or 1mJ to 999,999mJ, and the power level, from 200mW to 200W. It works with AC or DC loads and shows the result on a 6-digit indication.

What input voltage and current can the digital joulemeter accept?
The Joulemeter / Wattmeter, Digital accepts 0 to 15V AC or 0 to 21V DC in normal use, with an absolute maximum of 35V DC or 24V AC. It handles input frequencies up to 500Hz and a maximum current of 10A AC or DC.

How accurate is the Joulemeter / Wattmeter, Digital?
The Joulemeter / Wattmeter, Digital has a stated accuracy of 5% and is typically better than 3% at full scale. A single-chip microprocessor works with a dedicated precision analogue multiplier, which is what lets it measure power on AC as well as DC.

How is the digital joulemeter powered?
The Joulemeter / Wattmeter, Digital runs from a 220V AC, 50/60Hz mains supply and measures 208 x 155 x 115mm on the bench. If your laboratory uses a different mains voltage, mention it in your enquiry so we can advise before you order.

Who supplies the Joulemeter / Wattmeter, Digital?
The Joulemeter / Wattmeter, Digital is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, to schools, colleges, dealers and importers in India and international markets. Quotations can also include the leads, supplies and calorimetry items used with it.

Is a calibration certificate available for this joulemeter?
Calibration certificate availability for the Joulemeter / Wattmeter, Digital should be discussed with us before you order. Please mention the requirement when you contact us, and we will confirm what documentation can accompany the instrument.

What should a quotation request for the joulemeter include?
A quotation request for the Joulemeter / Wattmeter, Digital should state the quantity, the delivery location, your mains supply voltage and any accessories such as leads or a power supply you want priced together, so the offer covers the complete practical setup.

Request a Quote

To request a quotation for the Joulemeter / Wattmeter, Digital, send your requirement through our contact page or add it to the enquiry cart with any other physics lab items you need. We reply with availability and shipping options for India and international markets.

Last updated: 24 September 2026