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4 Pins Passive Infrared Sensor BL412 for Alarm System

Overview

Senbais the specialist PIR manufacturer 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.

Senba PIR sensor alarm systemis passive infrared type sensor. Working temperature is -20~ 85℃. There are 3type for PIR sensor, 3pins, 4pins, 6pins. For 3 pins type, 2s not adjustable. For 4pins, delay time adjustable. For 6pins, delay time, sensitivity, lighting adjustable.

Featuresof motion detector alarm

Robust Design Against False Starts

Low Curvature Lens

Technical Data

Characteristics

Symbol

Unit

Remarks

Supply Voltage

VDD

-0.3

V

Working Temperature

TST

-20

85

°C

Into

-100

100

mA

Storage Temperature

TST

-40

125

°C

Characteristics

Symbol

Type

Unit

Remarks

Supply Voltage

VDD

3

V

IR = 0.5mA

Working Current

IDD

9

11

μA

Sensitivity

VSENS

90

μA

Output REL

Output Low Current

InOL

10

mA

VOL<1V

Output High Current

1NC

-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

Application

Intelligent security- burglar alarm

Wireless infrared detection alarm, uses advanced signal analysis and processing technology. When the intruder enters through the detection area, it sends alarm signal to control panel.

The PIR motion alarmis suitable for home, residential area, factory, shopping mall, warehouse, and offices.

FAQ

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.

Most low-cost motion detectors can detect up to distances of at least 15 feet (4.6 m).



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