Please follow this link for the latest 4421A firmware located under "Downloads":
Articles in this section
- What is the Country of Origin of my Bird power meter?
- What is the Country of Origin of my Bird precision sensor?
- Where can I get the MSDS for the batteries used in the 4421A power meter?
- Where can I get the MSDS for the batteries used in the 4421 power meter?
- How do I get my 4421A-10-xx-x upgraded to a more advanced model?
- Where might I find information on the 4421B540-B to help me write my own programs to monitor sensors using it?
- Is there a recommended warm-up time for the 402x Series precision sensors?
- Can I use my older 4421 software code to control a new 4421A?
- What does the statement "Models do not need to be calibrated before use" mean as printed in the 4020 and 702x Series sensor datasheets?
- 4421A sampling rate
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