Senba Active PIR Motion Sensor D204B With EMI Pyroelectric Infrared Detectors For Lights, Lamps, Toys


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SKU: 1496199

1. Passive infrared burglar alarm: strong anti-interference for solid light and electromagnetic radiation
2. Human motion detector
3. Human motion detector of ceiling
4. Gas analysis
5. Non-contact infrared measurement


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1 Year Warranty
15 Days Warranty Against Sealed Product
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Brand: Senba
Category: PIR / IR and Optical Sensor
Tags: PIR Motion Sensor, Senba Active PIR Motion Sensor

The standard dual-element design recommended for all variants of motion control is the D204B pyroelectric infrared sensor, which includes a dual-element pyroelectric ceramic element with a FET source follower connection.

D204B uses a big window of 3.8x5mm and anti-EMI features, which provides high responsivity with excellent common mode performance and low noise at steady state and temperature changes.
The pyroelectric infrared sensor detects infrared radiation based on 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. Our products can be used worldwide for many applications.

Note: For more technical details go through Datasheet in the attachment section


  1. Pyroelectric infrared detectors: The D204B uses EMI pyroelectric infrared detectors, which are highly sensitive and can detect even small changes in infrared radiation.

  2. Active motion detection: The D204B uses active motion detection, which means that it emits its infrared radiation and then detects any changes in that radiation caused by moving objects.
  3. Wide detection range: The D204B has a detection range of up to 10 meters and a detection angle of 110 degrees, which makes it suitable for use in a wide range of applications.
  4. Adjustable sensitivity and delay time: The sensitivity and delay time of the D204B can be adjusted to suit different applications.
  5. Easy to use: The D204B is small in size and easy to install, making it ideal for use in lights, lamps, toys, and other devices that require motion detection.

Package Includes: 

1 x Senba Active PIR Motion Sensor D204B With EMI Pyroelectric Infrared Detectors For Lights, Lamps, Toys

Model No.


Dimensions in mm (LxW)


Spectral response






Maximum Supply Voltage (V)


Operating Temperature (°C)


Storage Temperature


IR Receiving Electrode

2*1mm, 2 Elements

Shipping Weight 0.002 kg
Shipping Dimensions 4 × 3 × 1 cm
15 Days Warranty Against Sealed Product

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defect.  Replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Warranty  Against Sealed Product:

This product comes with manufacturer seal so, warranty Policy shall cover only those issues pertaining to the manufacturing defects in the product. In any other case, No return will be accepted if the seal is broken.

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Country Of Origin: China