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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