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The pyroelectric infrared sensor detects infrared radiation on the basis of the characteristics that the polarization of pyroelectric material changes with temperature. Dual compensated sensing elements are applied to suppress the interference resulting from temperature variation. As a result, the operating stability of the sensor is greatly improved Our products can be used in many applications.

Applications 
1. security systems 
2. burglar alarms 
3.visitor acknowledgement 
4.light switch control 
5.intellectualized toy

Feature 
1. high sensitivity 
2. long detecting distance 
3. wide angle 
4. strong stability 
5. wide application fields

D204s big window PIR Motion Sensor
Encapsulation Type ：TO-5 
IR Receiving Electrode： 2*1mm, 2 elements 
Window Size ：5*3.8mm 
Spectral Response； 5—14µm 
Transmittance :≥75% 
Output Signal[Vp-p]: ≥3500mV 
Sensitivity :≥3300V/W 
Detectivity (D*): 1.4 ×108 cmHz1/2 /W 
Noise[Vp-p] :<70mV 
Output Balance: <10% 
Offset Voltage: 0.3～1.2V 
Supply Voltage: 3—15V 
Operating Temp: -30—70ºC 
Storage Temp: -40—80ºC