7
Feet / Meters
5f
t/1.8m - 7f
t/2.4m
16ft/5m
16ft/5m
32ft/10m
32ft/10m
50ft/15m
50ft/15m
110°
70°
The PIR motion sensors have an effective range of between 16ft/5m and 50ft/15m
depending on the specific conditions of the environment. Typically, the sensor
will have a longer range in colder conditions, or in evenly heated environments.
The opposite is also true - environments with uneven temperatures (such as part of
the area in sunlight and other areas in shade) or consistently high temperatures will
lower the effective range of the sensor.
Under typical circumstances, the maximum effective range of the PIR motion sensor
is approximately 50ft/15m. Multiple sensors can be used in conjunction with one
another to cover larger spaces.
Important:
•
Any obstructions in the environment will reduce the sensors effectiveness. It
can’t see through walls! Even a thin sheet of glass will significantly impair the
range of the sensor, as glass blocks more infrared radiation than visible light.
•
Small animals (such as a cat or similar) can, under some circumstances, trigger
the PIR motion sensors. Therefore, we suggest that the PIR motion sensors are
not suited to areas where pets are routinely kept.
Placing the PIR Motion Sensors
