Weston=A=OInstruments 



WATTMETER 

 Single and Polyphase 



VOLTMETER 



A Complete 

 Line of 



Alternating 

 Current 



Switchboard 



Indicating 

 Instruments 



EVERY detail of 

 each of these 

 instruments has been 

 most carefully studied 

 and worked out so as 

 to be sure that each 

 shall fully meet the 

 most exacting require- 

 ments of the service for 

 which it is intended. 

 Neither pains nor ex- 

 pense has been spared 

 in the effort to produce 

 instruments havingthe 

 longest possible life, 

 the best possible scale 

 characteristics, com- 

 bined with great ac- 

 curacy under the most 

 violent load fluctua- 

 tions, and also under 

 the many trying con- 

 ditions met with in 

 practical work. Every 

 part of each instru- 

 ment is made strictly 

 to gauge and the de- 

 sign and workmanship 

 and finish is of the 

 highest order of ex- 

 cellence. 



FREQUENCY METER 



POWER-FACTOR METER 



AMMETER 



Full particulars of design, construction, prices, etc., are given In Catalogue 16 



Write for it 



Weston Electrical Instrument Co. 





Waverly Park 



New York 114 Liberty Street 



Chicago 1504 Monadnock Block 



Boston 176 Federal Street 



Birmingham Brown Marx Building 



Philadelphia 342 Mint Arcade 



Detroit 44 Buhl Block 



Newark, N. J. 



St. Louis 915 Olive Street 



Denver 231 Fifteenth Street 



San Francisco 682 Mission Street 



New Haven 29 College Street 



Cleveland 1729 E. i2th Street 



