The U.S. Postal Service’s law enforcement arm will now be equipped with Cardiac Science Corp.’s automated defibrillators.

The Bothell, Wash.-based cardiac-device firm won a contract to deploy the devices at offices of the U.S. Postal Inspection Service across the country, according to the company.

The USPS is slated to buy an undisclosed amount of the company’s Powerheart AED automated external defibrillators. The devices feature the company’s "RescueCoach" voice-prompt system that instructs rescuers with CPR treatment instructions that include a CPR compressions metronome.

“We are proud to have been selected to protect the men and women of the Postal Inspection Service,” Cardiac Science CEO Dave Marver said in prepared remarks.

The terms of the deal were not disclosed. A call to Cardiac Sciences was not immediately returned.

Indian medical device developer Opto Circuits Ltd. took over Cardiac Science last December in a $2.30-per-share acquisition.

The company’s share price took a hit after an April 2010 recall of its external defibrillators. The Food & Drug Administration warned that 280,000 external defibrillators with components made by Cardiac Science could malfunction, expanding a November 2009 recall. In June, Cardiac Science said it would replace 24,000 defibrillators implicated in the same recall because the device’s flaws could not be remedied with software patches.