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SB312 Passive Infrared Sensor Module for Home Security System
SB312 Passive Infrared Sensor Module for Home Security System

SB312 Passive Infrared Sensor Module for Home Security System

Overview

New Smart PIR Sensor Module with improved digital sensor.


This unit has enhanced delay time adjustments, with an expanded range from 2 seconds to 70 minutes. The unit includes an integral light sensor with adjustable sensitivity, the unit is suitable for outdoor and indoor mounting. Detecting length is also adjustable. The output is a standard TTL output signal, that can be used with a microcontroller or for switching lights, etc.


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Technical Data

Model NO.

SB312

Size

10*8mm

Supply Current

DC3V~ 12V

Current Drain

<20uA

Voltage Output

High level signal:3.0V, Standby output  is 0V

Delay time

2s not adjustable

Operation Temperature

-20℃~ 60℃

Infrared Sensor

Dual element, low noise, high sensitivity

Light Sensor

No CDS

TTL Output

TTL output can be directly connected to micro controller or logic device

Sensitivity

High Sensitivity


Feature

  • IC integrated

  • Digital Signal Processing

  • Insensitive to RF interferenced

  • For Security Systems

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FAQ
  • Is Wave Soldering Recommended?

    Wave soldering is likely to cause degradation of product performance. Wave soldering is not recommended. Generally we recommend to solder by hand.


  • Can PIR Sensor Detect Animals?

    PIR sensors are excellent in human and animal detection. They are mostly used in triggering an intruder alarm and activate household appliances upon the presence of a human.

  • Do PIR Sensors Work Through Glass?

    No, alarm motion sensors do not work through glass. Most motion sensors use passive infrared (PIR) technology to detect motion. Changes in IR energy are not easily detected through glass. This is why motion sensors will generally not work through windows, which are usually insulated.


  • What Is The Package?

    1. PIR sensor: Graphic Carton-> Carton

    2. LDR: plastic bag -> Graphic Carton -> Carton

    3. Fresnel Lens: plastic bag -> Carton


  • What are the Factors that Affect the Performance of the Product?

    1. When there is dirt on the window, it will affect the detection performance.

     

    2. When the ambient temperature and the human body temperature are close, the detection and sensitivity are significantly reduced, sometimes causing short-term failure. The recommended minimum temperature difference between the ambient temperature and the human body temperature needs to reach at least 4 ° C.

     

    3. When designing the circuit, pay attention to anti-interference measures to prevent false alarms caused by radio frequency interference.