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walls will not be detected. Always turn AC power off when working near wiring.
The unit is designed to detect 110 volts (for USA version) and 230 volts for (European version) AC in live
electrical wires. It will also detect the presence of live wires having greater than 230 volts.
Adjustment Feet
The adjustment feet allow the leveling of the Laser line on the horizontal or vertical surfaces.
Cautions on Operating
You should always use caution when nailing, cutting or drilling in walls, ceilings and floors that may contain
wiring or pipes near the surface.
Shielded, dead or non-powered wiring will not be detected as live wires.
Always remember that studs or joists are normally spaced 16 inches or 24 inches apart and are 1-1/2 inches
in width. To avoid surprises, be aware that anything closer together or of a different width may be an
additional a stud, joist or firebreak.
When working near AC electrical wires, always turn off the power.
Operating Tips
IMPORTANT SAFETY NOTICE
Insure proper detection of live wires ALWAYS hold the unit in the handle area only. Grasp between fingers
and thumb while maintaining contact with your palm.
Conventional Construction
Doors and windows are commonly constructed with additional studs and headers for added stability. The unit
detects the edge of these double studs and solid headers and emits and holds an audio signal as it crosses
over them.
Surface Differences
Wallpaper—there will be no difference in the function of the stud sensor on surfaces covered with wallpaper
or fabric unless the coverings contain metallic foil or fibers. Plaster and Lath — unless the plaster and lath is
exceptionally thick or has metal mesh in it, there will be no problem with the unit functioning properly. Ceiling
or Textured Surfaces—When dealing with a rough surface such as a sprayed ceiling, use a piece of
cardboard when scanning the surface. Run through the calibration technique described earlier WITH the
piece of cardboard between the stud sensor and the surface. Also, it is particularly important in this
application to remember to keep your free hand away from the unit.
Specifications
Utilizing the procedure of scanning and marking from two sides, the unit will find the stud center with 1/8"
accuracy for wood and 1/4" accuracy for metal.
When measuring a wood or metal stud, it is recommended that the unit to be used at 33-55% relative
humidity.
Battery: 9 volt
Operating Temperature: +20º to +120ºF (-7ºC to +49ºC)
Storage Temperature: -20ºF to +150ºF (-29ºC to +66ºC)
Laser diode: 650nm class IIIA
Laser accuracy: 1/2" at 20 feet
Length of projected Laser Line: up to 20 feet
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