What Is A PIR Motion Sensor And Why It Is Essential for Home Security System? A passive infrared (PIR) sensor is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. When a person or animal moves within the sensor's range, it detects the change in infrared radiation and triggers a response, such as turning on a light or sounding an alarm.
The passive infrared (PIR) sensor detects motion by detecting the temperature difference between human body and background objects to room temperature. They remains highly vigilant when it’s working.
How Does A PIR Sensor Work? To sum up, it detects the change in infrared radiation of warm blooded moving object in its detection range. According to the change in infrared radiation, there will be a change in the voltages generated which was amplified and used to turn ON the webcam and lighting system through relay. Software was developed and installed in the computer to capture and record the video
when the webcam gets turned ON. When an intruder comes in the detection range of the PIR sensor, it actuates the lighting system and the webcam. The software detects the webcam connection; it will start to record and save the video. Once the intruder moves out of detection range of the sensor, the webcam and light gets turn OFF. The software repeats the process. Thus the saves power consumption and the memory space of the recording system as the lamp and webcam will only get turned ON when PIR sensors detects an object. Consequently the system starts recording only when the webcam is turned ON; hence saving memory space.
Features of Passive infrared (PIR) Sensors Passive Infrared (PIR) sensors have several features, including:
Motion detection: PIR sensors can detect the movement of objects within their field of view.
Non-contact sensing: They operate without the need to make physical contact with the object, making them suitable for various applications.
Energy efficiency: PIR sensors are energy-efficient because they only activate in response to detected motion, helping to save power.
Quick response time: They provide rapid detection of motion, making them ideal for security and lighting control applications.
Cost-effective: PIR sensors are relatively affordable compared to other motion-sensing
technologies.
Easy to install: PIR sensors are easy to install and require minimal setup for operation. Widely used: PIR sensors are commonly used in security systems, lighting control, automatic doors, and occupancy detection in buildings.
Long battery life (high-quality PIR sensors can last 5 years on one battery
Specifications of Passive Infrared (PIR) Sensor The passive infrared sensor detects motion by detecting changes in infrared (IR) levels caused by the presence of humans within its range
1. Detection range: Up to 12 m
2. Field of view /Detection angle : Horizontal: 110°
3. RBF wireless technology: Up to 3,100 m in an open space with hub and Two-way communication with hub
4. Wireless signal modulation: FSK / DSSS
5. Power Supply : CR123A × 1 and Up to 5 years (standby mode
6. Tamper Protection: Rear 7. Operating temperature: range within which the sensor can perform optimally. From -10°С to +55°С (14°F to 131° F ) 8. Storage Temperature: From -20°C to 60°C (-4°F to 140°F) 9. Dimension(WxHxD): 114.7mm × 61.2mm × 43.8mm 10. Weight: 102 g
How to Use PIR Motion Sensor? *You can click Spec and QSG to check more information about PIR sensors.
PIR Motion Sensor Appearance
Appearance LED Indicator
Description Red / Green / Orange *Used to indicate alarm status, signal strength status, and Find Me status.
Register
Press and hold for 5s to add the PIR to the Hub.
Button
*Register Button is only used for re-adding or connecting the peripheral to another hub.
PIR Lens
Fresnel lens *Used to detect motion within the detection range.
Case Lock
Rotate to lock / unlock the PIR case.
PIR Motion Sensor Mobile App State
Parameter
Value
Associated
0 ~ 64
scene
Meaning Shows the number of custom scenes associated with this PIR. You can also click to view and configure the scenes. *Please turn to Charter 6. Scene Management for more details.
Arm Status
Arm / Disarm
Shows the arm status of the PIR. When it’s armed, the PIR could detect motion events and then report alarm to Hub immediately. *The PIR will enter sleep mode for energy-saving.
Alarm Status
Normal / Alarm
Shows whether the PIR is triggered. *Alarm will only be triggered when PIR is armed.
Lid Status
Normal / Triggered
Signal
Shows the signal strength between the PIR and
Strength Connection
Shows whether the lid of PIR is open or not.
the hub. Online / Offline
Status
Shows the connection status between the PIR and the Hub. *The PIR will not be functional if the status is offline.
Battery Status
Shows the battery level of PIR. *If the battery level is low, the icon will turn red and you’ll receiver a malfunction notification in App.
PIR Motion Sensor Setting Click "
" on the top right corner and turn to “Setting”.
Parameter
Value
Basic
/
Information
Meaning Check the basic information of this device, including MAC Address, Serial Number, etc. And you can also edit the device name here by yourself.
Room Belongs to
You can select one of the rooms created before and then link the PIR to. *When linked to a specific room, the PIR will be displayed on the product list of the room, and the PIR could begin for detecting when the room is armed.
Find Me
A function that used to find your PIR among numerous devices. When you enable this function, the indicator in PIR will flash green to help you find the target device quickly.
Signal Strength
A function that used to check the
Test
signal strength between PIR and hub at the tested place, which is designed to help you choose the right place for installation. When you enable this function, you can check the signal strength by watching the indicator in PIR and the feedback in app.
Installation Test
A function that used to test whether the PIR is installed properly. When you enable this function, you can walk in the room to test if the PIR can detect and trigger an alarm properly. The indicator will flash red when it detects successfully.
Disable Device
If this button is ON, the alarm and ON / OFF
malfunctions generated by this PIR will no longer be uploaded to the Hub and App. *It is recommended that you disable the device only if it’s defective. Before turning on this function, please ensure that you are aware of the situation to avoid possible personal injury or property damage that may result from the device not detecting and triggering an alarm.
Display On
ON / OF
Homepage
When enabled, the PIR will show up on homepage so that you can operate quickly.
User Guide
/
Click to check the user guide document of PIR.
Delete Device
/
Delete the PIR from your hub.
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