PIR motion 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 with the EMI components. As a result, the operating stability of the sensor is greatly improved. Our products can be used world wide for many applications. Such as in security systems, burglar alarms, visitor acknowledgement, light switch control and intellectualized toy, etc. 

Recommended Model D204B big window 
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