A current clamp or current probe is an electrical device having two jaws which open to allow clamping around an electrical conductor. Current clamps are usually used to read the magnitude of a sinusoidal current, but in conjunction with more advanced instrumentation the phase and waveform are available. Clamp meter measures the vector sum of the currents flowing in all the conductors passing through the probe, which depends on the phase relationship of the currents. Only one conductor is normally passed through the probe.
A multimeter or universal measuring instrument is an electronic measuring instrument that combines several measurement functions in one unit. It has the ability to measure voltage current, and resistance.
This handy angle finder is ideal for calculating angles in slope construction, such as stairs, roof rafters and window frames.
The energy meter is an electrical measuring device, which is used to record Electrical Energy Consumed over a specified period of time in terms of units. Solar PV system uses Net metering which is a billing mechanism that credits solar energy system owners for the electricity they supply to the grid.