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Ecolink Wireless Door/Window Sensor with Extended Battery Life, 319.5 MHz


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Door/Window Sensor With A 10 Year Battery Life

With a CR2 lithium battery that provides up to 10 years of battery life, the Ecolink Wireless Door/Window Sensor, 319.5 MHz will let you know when your door or window has been opened or closed. This device is compatible with Qolsys, Interlogix, and GE panels/receivers (319.5 MHz wireless frequency) and consists of a sensor body and a magnet piece. The magnet piece mounts on the actual door/window while the sensor body mounts on the door/window frame. Whenever the sensor and magnet are separated or joined together (upon opening or closing the door or window), an alert is triggered. Plus, it features two separate zones. Zone 1 can be used for either of the two reed switches, while zone 2 can be used as an external contact option.

  • Alerts you when your door/window has been opened or closed
  • Compatible with 319.5 MHz wireless panels, such as GE/Interlogix or Qolsys
  • Up to 10 years of battery life (pull tab CR2 lithium)
  • Two reeds & NO/NC external input options
  • Includes snap-on brown case and wall mount bracket
  • Designed with wall and case tamper detection


  • Door/Window Sensor
  • Battery (CR2 Lithium)
  • Manual

Ecolink – Intelligent Security and Home Automation

Every Ecolink product originates as an insight – an idea generated by something that people want or something they want to do better. At Ecolink, it's not about the things they make, it's about the things they make possible. Ecolink was born from a pedigree of great distinction within the electronics industry. With countless years of design/development experience and numerous innovative and game-changing products, the Ecolink team designs and manufactures products to the highest standards of performance and quality.


  • Manufacturer Part #: TX-E251
  • UPC: 782136725384
  • Color: White and Brown cases
  • Frequency: 319.5 MHz (Crystal based)
  • Compatibility: Qolsys, Interlogix, and GE control panels/receivers
  • Includes:
    • Terminal block and EO resistor for N/C and N/O external contact applications
    • Two reeds & NO/NC external input options
  • Battery: CR2 (GPI)
  • Battery Life: Up to 10 years
  • Operating Temperature: 32°F (0°C) to 120°F (49°C)
  • Relative Humidity: 0-85% non condensing
  • Supervisory Interval: 64 Minutes
  • Regulatory:
    • Conforms to ANSI / UL Std 634
    • Certified to ULC Sub C634
  • Approvals: FCC
  • Warranty: 2-Year