The 2509 Digital Wattmeter combines a true RMS voltmeter, ammeter and wattmeter in on compact case. An LED display provides wide-range measurements: -75 to 275 V RMS, 0.3 to 11 A RMS and 250 to 2500 W. Max readout is 5990. Effective measuring range is 30 to 110% of input range. Frequency range from 40Hz to 400Hz.
