Yokogawa 204201 Portable, 3-phase Wattmeter, 0.2/1 A; 120/240 V

• Frequency range: DC, 25 Hz to 1000 Hz
  Effective for measurement of low-power-factor load power and small power
• Low self-consuming power
  Taut-band suspension system eliminates friction and provides strong resistance to shock impact

Miniature Portable Ammeters and Voltmeters 2051, 2052 and 2053

Model 2041 single-phase wattmeters and single-phase low-power-factor wattmeters and Model 2042 three-phase wattmeters are electrodynamometer type wattmeters with indicators based on taut-band suspension. They can handle DC and frequencies from 25 Hz to 1000 Hz, and provide excellent power factor characteristics. These instruments are shielded with dual permalloy sheets as protection against external magnetic fields.