Global model 1522 Digital Wattmeter is an accurate low cost instrument designed for use in engineering, quality control and production test departments to determine the power consumption of equipment operating directly from a standard 115VAC, 60Hz line. The 1522 features a large LED display and can measure up to 1999 Watts. In addition to power measurement, the wattmeter measures AC (true RMS) voltage and AC (True RMS) current. The 1522 is easy to operate and each measurement function, voltage (V), current (I) or power (W) is selected by a simple pushbutton switch on the front panel. The Digital Wattmeter can be connected to two different loads, where the total load current can be up to 20A maximum.