4421 Power Meter Obsolescence Notice

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The 4421 Power Meter has been discontinued as of December 2019. This product is being discontinued based on the obsolescence of key sourced components. The new 4421A replacement model is now available. Please contact your Bird representative for more information.

All existing 4421 Power Meters may continue to be returned to the Bird Service Center for repair.  It is Bird’s intention to support obsolete products for a period of five years from the date of obsolescence.  Availability of service parts may impact the actual support period.