DSC Wireless Door/Window Contact Reed Switch Compatible with IMPASSA, WS4945W

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DSC Wireless Reed Switch, WS4945W is designed to work seamlessly with your existing DSC wireless security system. Keep your doors and windows secure and gain peace of mind knowing that your home or business is protected.

Model: PG4914

DSC WS4945 is a normally closed (NC) wireless door / window contact compatible with DSC wireless alarm systems (see below for more details).

The WS4945 contact has become the new DSC standard for door/window contacts due to its streamlined profile (30% smaller than its predecessor the WLS925L-433/ WLS935L) and new design that allows for double-sided tape mounting. These features combine to help get you in and out of your jobs faster than ever before.

The WS4945 features a preinstalled battery that is activated by installers through a pull tab. This helps reduce installation time as casings don’t need to be opened for battery insertion. Simply draw the activation pull tab and mount the contact. To help further simplify the installation process, DSC has placed the PCB on the contact’s cover. If you prefer to mount the contact using screws (recommended when using the wall tamper option), the new design does not require the removal of the PCB to do so.

The WS4945 is designed for dependable case- or wall tamper detection. Depending on how the contact is purposed, it will send a signal to the alarm system if either its casing is opened or if it is forcibly removed from a wall. If the alarm system is armed when this occurs, an alarm will be activated and the central station will be notified of the violation (if programmed to do so). The WS4945 also features an external contact input that allows a standard hardwired door to be connected to it. This is useful for installations where it is difficult to mount the magnet within the maximum allowable gap of the contact (5/8˝ [16 mm]).

Significantly smaller than many door/window contacts,the WS4945 is housed within a compact casing that allows it to be used for the tightest-fitting installations. Once installed, the contact is inconspicuous and complements the décor of most homes. It is built with reliable 433 MHz technology, uses a long-life lithium battery and is compatible with all current DSC wireless receivers


  • DSCWS4945W original pack from DSC Australia 
  • Built-in reed switch
  • Normally closed external contact input
  • 1 lithium battery included
  • Reliable 433 MHz and 868 MHz technology
  • Available in brown housing
  • Case and wall tamper


  • IMPASSA Self-Contained 2-Way Wireless Security System
  • ALEXOR 2-Way Wireless Security System
  • SCW9045/9047 Self-Contained Wireless Security System
  • PowerSeries Wireless Receivers PC5132-433 / RF5132-433 / RF5108-433 / TR5164-433
  • PowerSeries RFK Keypads RFK55XX-433
  • MAXSYS Wireless Receivers PC4164-433 / RF4164-433
  • WS4920 Wireless Repeater

wireless reed detector will work with your security system to provide early detection of gross attacks or low-level shocks.

    Shop CTC Security for best deals on DSC motion detectors and security accessories.


    DSC Wireless Brochure

    DSC Detector Wireless, PG4914 Datasheet

    DSC Accessories

      Optional Accessories

      PIR Camera Detector


      DSC Wireless Detector with Integrated Camera, PG4934P


      PIR Outdoor Camera Detector

      PIR Outdoor Camera Detector

      Window Reeds

      DSC Wireless Door Window Contact with Auxiliary Input, PG4945

      Temperature Detector

      Smoke Detectors

      Remote Controls


      Shock Detector



      Wireless Siren

      Glass Breaks


        DSC products are covered by a replacement guarantee for 2 years from the date of purchase.

        CTC Security will cover postage for all replacement parts, but will not cover labour for installation cost.

        CTC Security offers a 1 year warranty on labour when the system is installed by us.

        Standard Shipping is a $17.50 flat rate for all orders

        Express Shipping $40.00

        Delivery Policy

        All prices displayed on this website exclude shipping costs

        Despatch Time

        Orders are dispatched Monday – Friday from 8am – 5pm within 2-4 business days and shipping times are estimated at between 3-7 business days depending on your location within Australia.

        Transit Times

        Postal transit times may can vary depending upon your destination and other social aspects, including impacts from COVID-19, Some items are taking a little longer than usual right now due to high parcel volumes and ongoing COVID-19 restrictions.

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        Order Confirmation

        After placing an order, you will receive an order confirmation by e-mail. This means we’ve received your order in our system and have pre-authorised your credit card for the purchase. If your item is back-ordered or otherwise unavailable, we will void the pre-authorisation charge and contact you to inform you by e-mail.  If your item(s) are available for immediate shipment (within 2 days), we will process the charges and submit the order for shipment.

        Tracking Numbers will be sent to your email once your order has shipped.

        In some cases, we may need to contact you before your order can be shipped. To ensure there is no delay, please respond to any email/phone call from our Customer Service team.

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        DSC Security Products FAQ's

        The DSC Neo Power Series is a line of security products designed for residential and commercial use. It includes control panels, keypads, sensors, and other peripherals to provide comprehensive security solutions.

        The Neo Power Series offers advanced security features such as flexible zone configurations, wireless connectivity, integration with home automation systems, remote access and control via smartphone apps, and support for a wide range of sensors and peripherals.

        Yes, the Neo Power Series is backward compatible with many existing DSC sensors and peripherals, allowing for easy upgrades and expansions of existing security systems.

        Yes, the Neo Power Series supports wireless communication protocols such as Wi-Fi, Z-Wave, and PowerG, providing flexibility in installation and connectivity options.

        Yes, the Neo Power Series can be monitored and controlled remotely via smartphone apps or web interfaces, allowing users to arm/disarm the system, receive alerts, and view system status from anywhere with an internet connection.

        PowerG is a wireless communication protocol developed by DSC, offering long-range communication, high encryption levels, and robust reliability, making it suitable for commercial and high-security applications. It enhances the performance and security of the Neo Power Series systems.

        The Neo Power Series supports a wide range of expansion modules, including additional zones, keypads, sirens, and communication modules, allowing users to customize and expand their systems according to their specific needs.


        Yes, the Neo Power Series supports integration with popular home automation platforms such asAlarm.comand Control4, allowing users to control their security systems along with other smart home devices from a single interface.


        While professional installation is recommended for optimal performance and reliability, the Neo Power Series is designed for easy installation and configuration, making it suitable for both professional installers and DIY enthusiasts.

        For installation in the Sydney Metro area, why not request a quote or call us on 1300 552 282.

        DSC typically provides a limited warranty on their products, covering manufacturing defects and malfunctions.

        DSC Neo Kit products are covered by a replacement guarantee for 2 years from the date of purchase.

        CTC Security will cover postage for all replacement parts, but will not cover labour for installation cost.

        CTC Security offers a 1 year warranty on labour when the system is installed by us.