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Long Distance 12M Detector Sensor HM412 From Senba Factory



Long distance pir sensor allows 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.



Higher in cost-performance

Long range

Wide angle


Technical Data

1.Maximum Ratings

Characteristics Symbol Min. Value Max. Value Unit Remarks
Working Temperature TST -20 85  
Max.current Into -100 100 mA  
Storage Temperature TST -40 125  


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

Characteristics Symbol Min. Type Max. Unit Remarks
Supply Voltage VDD 2.2 3 3.7 V IR=0.5mA
Working Current IDD 9 9.5 11 μA  
Sensitivity threshold value VSENS   80   μV  
Output REL
Output Low Current IOL 10     mA VOL<1V
Output High Current IOH     -10 mA VOL>(VDD-1V)
Output Low current Lock time TOL   2   s Non-adjustable
Output High current Lock time TOH 2   3600 s  
Voltage Input Range   0   VDD/2 V 0V to  VDD/2
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  



Wireless Devices/Mobile Equipment

Wireless occupancy sensors (powered by PV cells or battery)

PC and smart phones

Commercial & residential lighting fixtures

Video intercoms

Vending machines

Home automation



1.How long do motion sensor lights stay on?

Most people set their motion detection lights so they will stay on for about one to two minutes.


2.Do motion sensors save electricity?

Motion sensing switches do have some “phantom” energy use. According to this study, motion sensor switches use about a watt of energy on standby mode (23 hours a day) and 5 watts on active mode (about an hour a day). This trims a bit off of your overall savings.


As one of the most professional pir sensor manufacturers in China, Senba Sensing Technology Co.,Ltd., was founded in 2005, with the focus on producing the top quality photoelectric components. If you want to know more details, just feel free to contact us!



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