Optimate SAE to TM Converter Lead (SAE77) (O7). Converter lead (SAE77) to connect OptiMates (with SAE Connector) to pre 2012 Optimate / AccuMate accessories (with TM type connectors). Converter lead to connect your OptiMate with SAE-compatible connector to TM-accessories (as used with AccuMate and pre 2012 OptiMate models).
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