Blue Sea Contura Switch DPDT Black ON ON 5.25 inch Crisper And Whiter Light Output Stainless steel blades dicing Crisper And Whiter Light Output Corded trimstyle telephone Call waiting caller Id* stores up to 80 calls Requires 3 AA batteries (sold separately) for Caller ID to work 13 number memory 3 dedicated memory keys for easy one touch dialing Display dialing telephone numbers in the Caller ID log can be dialed with the touch of a button Last number redial Ringer control (on off) Reciever volume control Trilingual prompts choose between English Common Applications: Switching between shunts or current transformers with one meter 000 hours half life