4011 Small Pir Bus

Standard infrared detector

This device is a volumetric detector that detects an intruder moving within the protected area by capturing the difference in temperature of the moving target compared to background temperature.

Volumetric protection of indoor rooms up to 10 m (adjustable) x approximately 90°.

Correct positioning is essential for these devices to operate properly. The recommended height is approximately 2.2 m. Carefully perform the adjustments, which must be appropriate for the environment to be protected (PIR Sensitivity - Pulse Count - Temperature compensation - Led exclusion).

Size (h×l×d)
115×30×20 mm

0.12 Kg

Environmental class
2 - Indoor


Power Supply
12V DC

Tamper protection
When the electric connections compartment is opened, a tampering alarm is triggered. During maintenance it is necessary to set the control panel to ‘test’ beforehand. The device has no forced removal protection.

Monitoring and Testing
Detection is confrmed by the led light at every human movement, unless excluded during programming phase. When using an operating system the test take place by triggering an alarm and by verifying that signal is received by the control panel.


The device signals the intrusion by detecting the temperature difference between the target moving inside the protected area and the background. In addition to the intrusion alarm, the devices reports tampering when the event occurs.

5961 universal joint
This accessory can be used when it is necessary to point the detectors.