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Can the LM switch replacement kit be added onto a 25 series device that has already been installed?

The Latchbolt Monitor (LM) feature on a Falcon 24 or 25 Series device is only available as a factory installed option.
 
The LM Replacement Switch Kit (650713 or 650712) can be used to replace an existing damaged switch, but cannot be used to add the LM feature in the field.
 

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