If you are purchasing a NOTIFEX System with the capability to have Wireless Sensors (or if you already have a Wireless Sensor System), then the Wireless Module gives you the option to have any Floor-pad, Motion Detector, Chair-pad, Door-Open, or Bed-pad sensor have a wireless connection to the Transmitter Control Unit (TCU). While all of these sensors can attach to the TCU with a cable, having the Wireless Module lets you move them easily wherever or whenever you want, eliminating the need for the cable connection to the TCU.
With the NOTIFEX System, you can use as many sensors as you want. Because the NOTIFEX System is entirely modular, you can use the same Wireless Module with different sensors. For additional convenience, you can purchase additional Wireless Modules, so you won't have to change the Wireless Module when you are using a different sensor.
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The Wireless Module is about 2½" x ½" x 1"
Note: When you purchase a sensor, you are given the option or purchasing the Sensor in a Wired Option or in a Wireless Option. When you pick the Wireless Option you are buying the sensor and a Wireless Module. If you purchase a Pushbutton Sensor, and you pick the Wireless Option, then a Wireless Module is not included, although the Pushbutton will be wireless.