BIRD 43 - Bird 4301 Thruline Wattmeter

Bird Model 43 Wattmeter
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Bird 4301 Thruline Wattmeter
The Bird 4301 Thruline Wattmeter is the same as the Bird 43 except
for the following physical differences:
The auxiliary DC connector on the Model 4301 can be used to connect
to an accessory line section. Make the connection with a standard RG-
58/U cable.