Richard Dabate, 40, appeared in court on murder and other charges in the December 2015 slaying of 39-year-old Connie Dabate and his attorney entered the pleas.
Dabate was arrested two weeks ago and posted $1 million bail.
He told authorities a masked man entered the couple's Ellington home, shot his wife and tied him up before he burned the intruder with a torch.
However, police said Connie Dabate's personal tracking device logged steps after the time her husband told them she was killed. They also said he had a pregnant girlfriend.
He declined to comment Friday and his case was continued until June 16.