Specifications

• PIR motion sensor
• Model: HC-SR501
• Sensor Type: Passive Infrared (PIR)
• Operating Voltage: 4.5V – 20V DC
• Output Voltage: 3.3V (High/Low)
• Detection Range: 3 – 7 meters (adjustable)
• Detection Angle: <110°
• Delay Time: 0.5 – 300 seconds (adjustable)
• Sensitivity: Adjustable via potentiometer
• Trigger Mode: L (Single), H (Repeat)
• Board Dimensions: 32mm x 24mm
• Lens Diameter: 23mm
• Operating Temperature: -15°C to +70°C
• Output Pin: 3-pin (VCC, OUT, GND)

Features

• Passive Infrared (PIR) motion detection
• Detection range: up to 7 meters
• Detection angle: 110°
• Adjustable sensitivity and delay time
• Operating voltage: 4.5V to 20V DC
• Two trigger modes: Single & Repeat
• Compact size with mounting holes
• High/low output signal (3.3V)
• Low power consumption
• Includes Fresnel lens for wider coverage
• The HC-SR501 PIR Motion Sensor Module is a popular passive infrared sensor used to detect human or animal movement from up to 7 meters away. It features a pyroelectric sensor and a Fresnel lens that focuses infrared radiation onto the sensor, enabling reliable motion detection within a 110° cone.
• Two onboard potentiometers allow you to adjust sensitivity (detection distance) and delay time (how long the output stays high after motion). The module supports two trigger modes: Single (L) – triggers
• once per motion, and Repeat (H) – retriggers during motion.Perfect for automatic lighting, security alarms, robotics, and home automation. Compatible with Arduino, Raspberry Pi, and other microcontrollers.

What is the price of PIR Motion Sensor Module HC-SR501 Adjustable Sensitivity & Delay in Bangladesh?

The latest price of PIR Motion Sensor in Bangladesh is Price: ৳102.50 taka for 1 Pcs . You can buy this product at better and cheaper price from our website and also you can visit our warehouse between work hours 10am to 8pm.

Buy PIR Motion Sensor Module HC-SR501 Adjustable Sensitivity & Delay in Bangladesh from online at Dunia.com.bd.

In Bangladesh, you can get original PIR Motion Sensor From Dunia.com.bd . We have few collection of latest Arduino Accessories to purchase. Order Electronic Modules Online at our website Or Visit our warehouse to get your product at lowest price.

FAQ

1. What is the detection range of HC-SR501?
   Up to 7 meters (adjustable).
2. Can I use it with 5V Arduino?
   Yes, works with 4.5V to 20V.
3. How to adjust sensitivity?
   Use the left potentiometer (clockwise = more sensitive).
4. What are the trigger modes?
   L = Single trigger, H = Repeat trigger.
5. Does it detect animals?
   Yes, detects any warm-bodied movement.
6. Is it suitable for outdoor use?
   Avoid direct sunlight and rain. Use enclosure for outdoor.
7. What is the output signal?
   3.3V High when motion detected, 0V when idle.
8. Can I power it from 3.3V?
   Minimum 4.5V required for stable operation.
9. How to connect to Arduino?
   VCC → 5V, GND → GND, OUT → Digital Pin.
10. What library to use?
    No library needed. Use digitalRead().