Blue Sea Systems 7903 Replacement Locking Key for m-Series Battery Switch - Red

The Blue Sea Systems 7903 is a replacement locking key designed specifically for the Blue Sea Systems 6004 m-Series battery switch. This red key provides a convenient spare or replacement for the removable locking key that comes with the 6004 ON/OFF battery switch.

Key Features:

• Designed for use with Blue Sea Systems 6004 m-Series battery switch
• Red color matches the 6004 Red battery switch
• Convenient slot for attachment to keychain
• Waterproof and water-resistant construction
• Two-position key rotary design for ON/OFF control
• Prevents unauthorized battery disconnection when removed

This replacement key is an essential spare for marine, RV, and vehicle battery management systems. The removable key feature allows you to lock the battery switch in the OFF position during maintenance or storage, preventing accidental power-on while servicing electrical systems. The keychain slot ensures you can keep the spare key readily accessible.

California Prop 65 Warning: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause cancer, birth defects or other reproductive harm.