The Joulemeter/Wattmeter is light, compact, and designed for class demonstration or student use. One pair of 4mm sockets is also provided to indicate the instantaneous power. The unit can measure energy taken up by a load, either by AC power or DC power, and from 1J to 999,999J or 1mJ to 999,999mJ and can also measure power level of 200mW to 200W. Depending on mW / mJ or W / J range, 1V full scale deflection represents 100mW or 100W respectively. 

Specifications:-

• Input Voltage: 0 to 15V AC, (0 to 21V DC), absolute maximum 35V DC, 24V AC.

• Input Frequency: 0 to 500Hz Maximum.

• Accuracy: 5%, typically better than 3% at full scale.

• Maximum current: 10A AC / DC.

• Energy / Power Indications: 6 digits.

• Power Supply: 220V A.C. 50/60Hz.

• Dimensions: 208x155x115mm.