Senba Sensing Technology Co., Ltd.
PIR Sensors Used in Security Alarms and Automatic Lighting Applications D205B
PIR Sensors Used in Security Alarms and Automatic Lighting Applications D205B

PIR Sensors Used in Security Alarms and Automatic Lighting Applications D205B


D205B is widely used for ceiling lamps and has a large detection angle.The pyroelectric infrared sensor detects infrared radiation on the basis of the characteristics that the polarization of pyroelectric material changes with temperature.

Senba is the specialist PIR manufacturer for more than 15 years. We are the most advanced factory with complete categories. With strong R&D center, there are digital type and analog type, dual elements and four elements for you choose. The market cover domestic market, Korean, America, Turkey and Europe. 


  • Low power consumption

  • Wide angle

  • Slight movement can be detectable

Recommended ModelD205B
Encapsulation TypeTO-5
IR Receiving Electrode0.7×2.4mm, 4 elements
Window Size4.9×4.9mm
Spectral Response5—14µm
Output Signal[Vp-p]≥5000mV
Detectivity (D*)1.6 ×108 cmHz1/2/W
Output Balance<10%
Offset Voltage0.3~1.2V
Supply Voltage3—15V
Operating Temp-30—70ºC
Storage Temp-40—80ºC
Field of ViewField_of_View_2.png


  • Ceiling Lamps

  • Home security systems

  • Home Alarm System. As its ability to sense warm, moving objects such as people walking into a room is coupled with simplicity and cost effectiveness.


1. Can PIR sensor detect animals?

PIR sensors are excellent in human and animal detection. They are mostly used in triggering an intruder alarm and activate household appliances upon the presence of a human.


2. Do PIR sensors work through glass?

No, alarm motion sensors do not work through glass. Most motion sensors use passive infrared (PIR) technology to detect motion. Changes in IR energy are not easily detected through glass. This is why motion sensors will generally not work through windows, which are usually insulated.



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