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SCR Controller BD 1500:
This is the main controller board for most MSR-xxx-xx and SMSR-xxx-xx units. Please provide the unit's serial number and SO# located on the serial tag below the power input on the right hand side. This number will allow the controller board ready for your units configuration.
ORDERING AND RETURN AND REFUND POLICY.pdf
Electrical parts / components are NON Refundable