Specification:

Windows Size: 5*3.8mm
IR Recevie Electrode: 2*1mm,2 elements
Encapsulation: TO-5
Spectral Response: 5~14 μm
Transmissivity: ≥75%
Output Signal[Vp-p]: ≥3500mV
Sensitivity: ≥3300V/W
Detectivity: 1.4*108cmHZ1/2/W
Noise[Vp-p]: <70mV
Output Balance: <10%
Offset Voltage: 0.3~1.2V
Supply Voltage: 3~15V
Opearting Temp: -40~80℃
Storage Temp: -40~80℃

Applications:
Sensor Switch
The PIR motion sensor adopts high-performance infrared detector. As long as human cross through its detection range, the infrared switch generates an electrical signals.

FAQ:

1. Why is PIR sensor called passive?
   The sensor is called passive because it doesn't emit light to get measurements. The sensor in PIR is actually split into two parts. The reason for that is to measure motion. ... The sensor is also sensitive enough to even detect IR radiation source movement while the object is already in it's field of view.

2. How far can a motion sensor detect?
    D204B can detect up to distances of 8-10M.