There are two kinds of PIR sensors: the analog PIR sensor and the digital PIR sensor.
Digital PIR sensors are much more sensitive and immune to false triggers.
There are three levels of PIR sensitivities: low, mid, and high. Each level has a corresponding PIR detecting distance or PIR detecting range. For different objects, there are also different detecting distances.
Applies to: All Reolink battery-powered cameras.
For analog PIR (Argus 2, Argus Pro), you can refer to the below table for the detecting distance.
| Sensitivity |
Detection Distance (for moving and living things) |
Detection Distance (for moving vehicles) |
| Low | Up to 4 meters (13ft) | Up to 10 meters (33ft) |
| Mid | Up to 6 meters (20ft) | Up to 12 meters (40ft) |
| High | Up to 9 meters (30ft) | Up to 15 meters (50ft) |
For digital PIR (Argus 2 and other battery-powered cameras except Argus pro), you can refer to the below table for the detecting distance.
| Sensitivity | Value |
Detection Distance (for moving and living things) |
Detection Distance (for moving vehicles) |
| Low | 0-50 | Up to 5 meters (16ft) | Up to 10 meters(33ft) |
| Mid | 51-80 | Up to 8 meters (26ft) | Up to 12 meters(40ft) |
| High | 81-100 | Up to 10 meters (33ft) | Up to 15 meters(50ft) |
The actual detection distance also depends on the mounting height and angle of your cameras in actual use. You may refer to this article for more details: Installation Tips for Reolink Battery-Powered Cameras.