5
GB
Contents
• Stud Sensor Information
• User Safety
• Battery Safety
• Installing AAA Batteries
• Using the Stud Sensor
• Maintenance
• Troubleshooting
• Service and Repairs
• Warranty
• Specications
Stud Sensor Information
The Stud Sensor STHT77587/STHT77588 uses electronic 
signals to locate the center of wood or metal studs, or live AC 
wires through drywall or other common building materials.
PLEASE NOTE:
•  The stud sensor will not detect objects in concrete, mortar, 
block, brick work, plaster, carpeting, foil- faced materials, 
metallic surfaces, or ceramic tile.
•  The stud sensor is not designed to locate non-ferrous or 
plastic objects, such as pipes.
Once the center of a wood or metal stud has been detected 
in one pass across the surface, the Stud Sensor STHT77587/
STHT77588 turns on an LED and sounds an audible tone. 
A marking hole allows you to easily note the stud center.
EC-Declaration of Conformity
Stanley herewith declares that the product STHT77587/
STHT77588 is in compliance with the essential requirements and all 
other provisions of Directive 1999/5/EC. 
The full text of the EU Declaration of Conformity can be 
requested at Stanley Tools, Egide Walschaertsstraat 14-16, 
2800 Mechelen, Belgien, or is available at the following internet 
address: www.2helpU.com.
User Safety
Safety Guidelines 
The denitions below describe the level of severity for each 
signal word. Please read the manual and pay attention to these 
symbols.
  WARNING: Indicates a potentially hazardous 
situation which, if not avoided, could result in serious 
injury.
 CAUTION: Indicates a potentially hazardous situation 
which, if not avoided, may result in minor or moderate 
injury.
NOTICE: Indicates a practice not related to personal injury 
which, if not avoided, may result in property damage.
If you have any questions or comments about this or any 
STANLEY
®
 tool, go to www.2helpU.com.
WARNING:
Read and understand all instructions. Failure to 
follow the warnings and instructions in this manual 
may result in serious personal injury.
SAVE THESE INSTRUCTIONS
WARNING:
The following label information can be found on your 
tool for your safety.
AAA
Made in China
AAA
Made in China
WARNING:
If the equipment is used in a manner not specied 
by the manufacturer, the protection provided by 
the equipment may be impaired.
CAUTION:
Protect your eyes. Wear safety goggles.