The WT-01 wire trip switch is designed to cover unusual openings like basement windows, attics, and crawl spaces. It uses a criss-crossed wire or string across the opening to trigger an alarm if the wire is pushed aside or cut. Benefits include protection in areas where PIR sensors don't work well, longer service life than mechanical trips, and elimination of false alarms. Installation involves securing the switch and end hook and running light weight wire between them.

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WT-01 Wire Trip Switch
WT-01
Wire Trip Switch
Use in windows, crawl spaces and attics
Not susceptible to insects & temperature extremes
like PIRS
Covers unusual openings
Environmentally sealed contacts
Eliminates false alarms & nuisance service calls
Magnetically plunger actuated
No blades to corrode
Replaces older mechanical trip
Longer service life
Vibration free
Install and forget
Available with screw terminals
Product Specification PDF's About PDF
WT-01 Wire Trip Switch Product Specification PDF
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2. GEORGE RISK INDUSTRIES, INC.
G.R.I. PLAZA
KIMBALL, NE 69145
MADE IN U.S.A.
TOLL-FREE 1-800-445-5218
TOLL-FREE 1-800-523-1227
(308) 235-4645
FAX (308) 235-3561
E-MAIL: grisales@megavision.com
WEB SITE: www.grisk.com
WIRE TRIP
SWITCH
Use In Windows, Crawl Spaces and Attics
Not Susceptible To Insects and Temperature Extremes Like PIRS
Covers Unusual Openings
Environmentally Sealed Contacts
Eliminates False Alarms and Nuisance Service Calls
Magnetically Plunger Actuated No Blades To Corrode
Replaces Older Mechanical Trip
Longer Service Life
Vibration Free Install and Forget
Available With Screw Terminals
WT-01
The WT-01 is made to cover openings where a normal switch won’t adequately cover the opening like base-
ment windows, attics, crawl spaces, or any other unusual opening. It can be used in places where PIRs would be
troublesome due to insects and temperature extremes. Wire or string is criss-crossed across the opening. Then if the
wire is pushed out of the way or cut the switch will trigger the alarm panel.
WT-01
WARRANTY:
Lifetime warranty against workmanship, material and factory defects.

3. WT-01 Closed N/O B .150 10 160 .400
GEORGE RISK INDUSTRIES, INC.
G.R.I. PLAZA
KIMBALL, NE 69145
TOLL-FREE 1-800-445-5218
TOLL-FREE 1-800-523-1227
(308) 235-4645
FAX (308) 235-3561
E-MAIL: grisales@megavision.com
WEB SITE: www.grisk.comBA-240 Rev A 8/31/2010
CONTACT YOUR G.R.I. DISTRIBUTOR OR CALL:
Installation Instructions:
Wire/String is not supplied with the
switch. Select a light weight wire/string and
plan for enough length so that the opening
can be criss-crossed enough times to ad-
equately cover the opening. Wire/String
should be light weight enough so that it will
not impede exiting in case of emergency. If
opening is an emergency exit, consult
local fire inspectors before installing.
Select locations for switch and end hook
and secure them in place with screws. Add
eye hooks or similar hooks so that wire will
criss-cross the opening. Tie the wire to the
eye hook on the switch and run wire though
other hooks to last hook. With a meter at-
tached to the terminals of the switch pull on
the wire until the plunger is in the middle of
the closed range of the switch. Then tie the
wire to the end hook. Some wire/strings will
stretch over time so adjustments may need
to be made to prevent false alarms. Adjust-
ments can be made after the string is tied to
the end hook by loosening the screw and
sliding the end hook.
MADE IN U.S.A.
PART LOOP ELECTRICAL REED MAXIMUM MAXIMUM MAXIMUM MAXIMUM
NUMBER TYPE CONFIG. FORM INITIAL CONTACT CONTACT SWITCHING SWITCHING
RESISTANCE RATING VOLTAGE CURRENT
(Ω) (W) (VDC) (A)
GRI products meet or exceed these minimum general specifications:
WIRE TRIP
SWITCH
Approx. Total Travel: .415
WT-01