The rapper-actress was not in Superior Court when her attorney entered the plea to a single misdemeanor count. Under the plea agreement, a second count of driving under the influence was dropped.
An e-mail to her publicist, Amanda Silverman, was not immediately returned.
Eve, whose real name is Eve Jihan Jeffers, was arrested early April 26 after her gold Maserati struck a center median on Hollywood Boulevard.
Also, besides having to wear the monitoring device, she has to attend 10 Alcoholics Anonymous meetings and a three-month alcohol education program for first-time offenders.
She must appear personally in court on July 20 to show proof that she has enrolled in the alcohol program and is hooked up to the monitor, said Frank Mateljan, a spokesman for the city attorney's office.
If the monitor shows Eve had alcohol during the 45-day monitoring period, that period will start over again. If she tests positive a second time, she will serve 10 days in county jail, Mateljan said.
"This was handled like any other of our DUI cases," Mateljan said. "This was an appropriate sentence, we believe, for the facts of this case."
Eve, a protege of gangsta rap trailblazer Dr. Dre, has released several solo albums and won a Grammy in 2001 for the single "Let Me Blow Ya Mind" with Gwen Stefani.
Her movie credits include "Barbershop," and she once had her own self-titled sitcom.