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What is cds photoresistor?

Overview

G2X2 is quad elements type products. With same horizontal and vertical detection angles. It is widely used in ceiling light.

 

PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don't wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, "Passive Infrared", "Pyroelectric", or "IR motion" sensors.

 

Features

Quad Elements

Same horizontal and vertical detection angles

Slight movement can be detectable

 

Recommended Model

G2X2

Encapsulation Type

TO-5

IR Receiving Electrode

1.1×1.1mm, 4 elements

Window Size

4.9 × 4.9mm

Spectral Response

7–14µm

Transmittance

≥75%

Output Signal[Vp-p]

≥3500mV

Sensitivity

≥3300V / W

Detectivity (D*)

1.4 × 108 cmHz 1/2 / 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

Field of View

 

Applications

Ceiling Lighting

security systems

 

FAQ

  1. What can trigger a PIR sensor?

The first cause of PIR false alarms is low or unstable voltage at the detector. Test to make sure the voltage at each PIR is above 13VDC and stable. The second cause of false alarms is sudden infrared movement / heat changes in view of the detector.

  1. Do PIR sensors work in the dark?

Yes, motion sensors work in the dark. The way that a motion sensor detects movement has nothing to do with how light or dark it is in the immediate area. Since infrared energy is present and can be detected regardless of the amount of light in the environment, a PIR motion sensor will work just fine in the dark.

 

Senba is one of the most professional PIR sensor manufacturers 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, Amertica, Turkey and Europe.

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