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4pins Digital Smart Pyroelectric Detector BS412

Senba Sensing Technology Co.,Ltd. is a professional pir sensor manufacturers. We provide Infrared Thermopile Sensor, Digital PIR Sensor and so on. Want to know about pir sensor technology? Please contact us.

Overview

BS412is a newest smart digital motion detector with a small window size. It offers a complete motion detector solution, with all electronic circuitry built into the detector housing. Only a power supply and power-switching components need to be added to make the entire motion switch.

BS412 includes the time setting only.

Features of BS412 Pyroelectric Sensor

Built-in filter, screen the interference by other frequency

Excellent power supply rejection, Insensitive to RF interference

Technical Data of BS412 Pyroelectric Motion Sensor

Characteristics

Symbol

Unit

Remarks

Supply Voltage

VDD

-0.3

V

Working Temperature

TST

-20

85

Into

-100

100

mA

Storage Temperature

TST

-40

125

Characteristics

Symbol

Type

Unit

Remarks

Supply Voltage

VDD

3

V

IR=0.5mA

Working Current

IDD

9

11

μA

Sensitivity

VSENS

90

μV

Output REL

Output Low Current

IOL

10

mA

VOL<1V

Output High Current

IOH

-10

mA

VOL>(VDD-1V)

Lock time

TOL

s

On-time

TOH

2

3600

s

ONTIME

Input voltage

0

VDD

V

0Vto ¼ VDD

Input Bias Current

-1

1

μA

Oscillator & Filter

Low pass filter cut-off frequency

7

Hz

High pass filter cut-off frequency

Hz

Oscillator frequency on Chip

FCLK

64

kHz

Interior Block Diagram

Applications of BS412 Pyroelectric Infrared Sensor

home security systems

As its ability to sense warm, moving objects such as people walking into a room is coupled with simplicity and cost effectiveness.

FAQ of Pyroelectric Sensor

PIR-based Motion Detection: In this case motion is detected by means of a PIR sensor, a passive infrared sensor. This sensor detects emitted infrared energy from objects (humans and animals, but also cars) in the form of heat.

  1. pyroelectric sensor workingin 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.



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