edwards signaling Blog

Protecting Pella Casement or Awning Windows

Edwards Signaling 10/2/2018
Protecting Pella Casement or Awning WindowsPella casement and awning windows may have two separate pieces of glass or one Thermopane. It is very important, therefore, to take extra care when drilling the mounting holes to avoid the glass.
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Protecting Recreational Equipment

Edwards Signaling 10/2/2018
Protecting Recreational EquipmentMotorcycles, bikes, recreational vehicles, boats and other items can be protected with the Sentrol Magnapull. For commercial applications, pull armored switch lead through a row of items to be protected.
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Protecting Revolving Doors

Edwards Signaling 10/2/2018
Protecting Revolving DoorsSteel or aluminum revolving doors can be secured in several ways, depending upon their material and the availability of mounting space.
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Protecting Roof Entry - Protecting Drop-Down Stairs - Attic Entry

Edwards Signaling 10/2/2018
Protecting Roof Entry - Protecting Drop-Down Stairs - Attic EntryOften the entry door from the garage to the house will be alarmed and the garage door will be left unsecured. An intruder can gain access to the garage door, enter the attic via the drop-down stairway, cut a hole through the ceiling between the joists, and drop into the house, all without triggering the alarm.
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Protecting Roof Entry - Protecting Hinged Skylights

Edwards Signaling 10/2/2018
Protecting Roof Entry - Protecting Hinged SkylightsProtecting against unwanted intrusion through a hinged skylight using surface-mount magnetic contacts.
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Protecting Roof Hatches

Edwards Signaling 10/2/2018
Protecting Roof HatchesEntry via a roof hatch can be thwarted by using Sentrol surface mount switches. The switch used will depend upon the mounting method required by the space available and the connection into the alarm circuit.
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Protecting Sliding Aluminum Doors

Edwards Signaling 10/2/2018
Protecting Sliding Aluminum DoorsProtecting sliding aluminum doors against unauthorized entry.
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Protecting Sliding Aluminum Windows

Edwards Signaling 10/2/2018
Protecting Sliding Aluminum WindowsThis page and the following two pages provide installation instructions for protecting sliding aluminum windows with recessed or surface mount Sentrol switches, or a combination of both.
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Protecting Steel Doors with Recessed Top

Edwards Signaling 10/2/2018
Protecting Steel Doors with Recessed TopSome steel doors are recessed at the top, creating a large gap which must be overcome when using a concealed magnetic contact. This page and the next two pages give three methods for solving this problem.
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Protecting Steel Doors with Threshold Contacts

Edwards Signaling 10/2/2018
Protecting Steel Doors with Threshold ContactsFor steel doors with aluminum thresholds, it is sometimes convenient to mount the magnet in the bottom of the door and the switch in the hollow space beneath the threshold.
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Protecting Thin Frame Windows

Edwards Signaling 10/2/2018
Protecting Thin Frame WindowsSecuring Pella or sliding aluminum windows or doors which have thin window frames and limited space for mounting the switch. Sentrol’s 1145-W ultra- miniature surface-mount magnetic contact, with regular or wide gap operating distance, is ideal for this application.
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Protecting Trucks and Trailers at Loading Docks

Edwards Signaling 10/2/2018
Protecting Trucks and Trailers at Loading DocksTrucks and trailers can be secured with Sentrol’s MagnaPull at loading docks. Extend a Sentrol 2105A or 2115A standard Magnapull unit from the perimeter loop on each loading dock. There are two different mount methods.
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Protecting Truck Tailgates

Edwards Signaling 10/2/2018
Protecting Truck TailgatesRoll-up truck tailgates can be protected with magnetic contacts that have sufficient durability, gap and vibration resistance.
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Protecting Wood Door Thresholds with Recessed Contacts

Edwards Signaling 10/2/2018
Protecting Wood Door Thresholds with Recessed ContactsFor wood doors with aluminum thresholds, it is sometimes convenient to mount the magnet in the bottom of the door and the switch in the hollow space beneath the threshold.
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Protecting Wood or Steel Doors with Roller Plunger Contacts

Edwards Signaling 10/2/2018
Protecting Wood or Steel Doors with Roller Plunger ContactsWood and steel doors can be protected with roller plunger contacts that can be installed without removing the door from its hinges. The versatile Sentrol 3005 and 3008 Roller Plunger Contacts can also be used on windows and sliding patio doors.
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Replacing Mechanical Recessed Type Switches in Doors

Edwards Signaling 10/2/2018
Replacing Mechanical Recessed Type Switches in DoorsFloating magnet-type mechanical switches can fail due to corrosion (unit is not hermetically sealed), uneven wear of the plastic body, or crushing of the unit between the door and frame. The use of a Sentrol switch is an attractive alternative.
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