The Interlogix NX-482 (also known as 60-88-95) is a passive infrared (PIR) motion detector that is used to detect intruders. The device maintains coverage from floor to ceiling using true curtain barrier detection. The NX-482 also uses "undercrawl" protection to stop intruders who may try to move underneath a typical sensor detection height. Another unique aspect of the NX-482 is that it uses special "4D signal processing" when scanning. This allows the sensor to detect the size, shape and speed of any incoming infrared signature. If the detected energy signature matches that of a human, the device will activate and send an alert to the system. This sensing process has been shown to cause fewer false alarms and provide more accurate detection overall.
The NX-482 still operates in largely the same manner as any other PIR motion sensor. The device scans the area to obtain a baseline reading of infrared energy. Whenever a significant change in infrared energy is detected, the device will activate and alert the system. But with 4D signal processing, the sensor is more capable of detecting the distinct energy signature of a human instead of other possible sources. The NX-482 also comes with mirror inserts that can be used to establish four different coverage patterns. These patterns are a full 90-degree pattern, a 45-degree left pattern, a 45-degree right pattern and a center curtain pattern. We advise users to corner mount the device if a 90-degree pattern, a 45-degree left pattern or a 45-degree right pattern is being used.
The optimal mounting height for the NX-482 is 7.5 feet. It is best to place the device diagonally downward so that it can achieve the best possible coverage area. Installation is quite easy thanks to the device's included mounting plate. The device has an adjustable coverage area of up to 10 feet by 50 feet, and the sensor's pulse count can be set to either 2 or 4 to adjust its sensitivity. To avoid false alarms, the sensor should not be mounted towards any windows, fire places, vents or air ducts. While the sensor can theoretically work from up to 500 feet away from the panel, we recommend placing the sensor within 100 feet of the panel. This will provide optimal performance for the sensor.
The NX-482 uses a 319.5 MHz crystal transmitter to communicate. This allows the sensor to interface with any Interlogix Simon System, as well as any Qolsys System that has a 319.5 MHz daughterboard. The sensor can be readily learned-in with any of these systems. Once the device has been installed and programmed, a walk test should be performed to check for proper function. To put the sensor into walk test mode, simply remove and reapply the sensor's cover. In this mode, the LED light on the sensor will activate whenever motion is detected. The sensor will automatically exit this mode after two minutes. You can re-enter this mode at any time by removing and reattaching the sensor cover again.