Overview

 

Senba is 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 system is 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.

 

Features of motion detector alarm

 

Robust Design Against False Starts

 

Low Curvature Lens

 

Technical Data

1. Maximum Ratings

Characteristics	Symbol	My. Value	Max. Value	Unit	Remarks
Supply Voltage	VDD	-0.3	3.6	V
Working Temperature	TST	-20	85	°C
Max.current for pin	Into	-100	100	mA
Storage Temperature	TST	-40	125	°C

 

2.Working Conditions (T=25°C, Vdd=3V，Except other requirements)

Characteristics	Symbol	Min.	Type	Max.	Unit	Remarks
Supply Voltage	V DD	2.0	3	3.3	V	IR = 0.5mA
Working Current	I DD	9	9.5	11	μA
Sensitivity	VSENS		90		μA
Output REL
Output Low Current	In OL	10			mA	VOL<1V
Output High Current	1 NC			-10	mA	VOL>(VDD-1V)
Lock time	T OL		2.3		s
On-time	T OH	2		3600	s
ONTIME
Input voltage		0		V DD	V	0V to ¼ VDD
Input Bias Current		-1		1	μA
Oscillator & Filter
Low pass filter cut-off frequency				7	Hz
High pass filter cut-off frequency				0.44	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 alarm is suitable for home, residential area, factory, shopping mall, warehouse, and offices.

 

 

FAQ

 

1.Why is PIR sensor called passive?

 

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.

 

2.How far can a motion sensor detect?

 

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