April 7, 2009 
About 78,000 Stanley stud sensors are being recalled. They can fail to calibrate properly and detect AC electrical wires behind the wall, posing a shock hazard to the user.
The recalled stud sensor models include the Stanley Stud Sensor 200 and Stanley FatMax Stud Sensor 400 with model numbers 77-720 and 77-730. The model number is located in a slide-out reference guide found in the base of the sensors handle. The sensors are made of black plastic with a wide yellow stripe down the center. Stanley or FatMax are printed on the front of the product. A date code is printed on the inside of the battery cover. Affected sensors have date codes that do not begin with the letter R.
The stud sensors, made in Hong Kong, were sold at home improvement and hardware stores nationwide from November 2007 through January 2009 for between $20 and $30.
Consumers should contact Stanley to determine if their stud sensor is included in the recall and to receive a free replacement sensor.
For additional information, contact Stanley toll-free at (866) 215-1132 between from 8 a.m. and 5 p.m. ET Monday through Friday, visit the firms Web site at www.stanleytools.com.
The recall is being conducted in cooperation with the U.S. Consumer Product Safety Commission (CPSC).
