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HCSR501 PIR Motion Sensor
The HC-SR501 PIR Motion Sensor Module allows you to sense motion. It is almost always used to detect the motion of a human body within the sensor’s range. It is often referred to using “PIR”, “Pyroelectric”, “Passive Infrared” and “IR Motion Sensor” sensors. The PIR Motion sensor module has an onboard pyroelectric sensor, conditioning circuitry, and a dome-shaped Fresnel lens.
The PIR Sensor has a delay time adjustment Potentiometer and sensitivity adjustment Potentiometer. Repeat Trigger Selection Jumper is also available. Compatible with Arduino, Raspberry Pi, AVR, PIC, 8051, etc.
Check out our entire range of IR Proximity Motion Sensors
Applications:
- Automatically sensing light for Floor, bathroom, basement, etc
- Automatically sensing light for porch, warehouse, Garage, etc
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- All orders confirmed before 3 pm IST are shipped on the
same day, barring rare pickup delays on holidays or disturbances - Delivery time in Metro cities is 1-3 days, Others it is
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otherwise. No refunds/replacements after - Returns only for non-working/damaged products are accepted
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Package Includes:
- 25 x HCSR501 PIR Motion Sensor
Specifications:
| Model | HCSR501 |
| Operating Voltage | 4.5 ~ 20V |
| Average Current Consumption (mA) | 0.06 |
| Distance Measuring Range (cm) | 300 ~ 700 |
| Dimensions | 32 x 24 x 18 mm |
| Weight | 15 grams |
1. What is an HCSR501 Sensor?
- The HCSR501 PIR sensor is a passive sensor (which means it hardly uses any energy to work). It detects infrared radiation from a passing heat source. You can use this to make a motion detection device, a light switch, or you could string many together and you could make an instrument that you won’t need to touch.
2. What is the Range of PIR Sensor?
- Indoor passive infrared: Detection distances range from 25 cm to 20 m.
Indoor curtain type: The detection distance ranges from 25 cm to 20 m.
Outdoor passive infrared: The detection distance ranges from 10 meters to 150 meters.
Outdoor passive infrared curtain detector: distance from 10 meters to 150 meters
3. What is the difference between PIR and IR Sensor?
- The IR sensors detect whether the light from the transmitter is emitted by an object or a person. Whereas, the PIR sensors detect changes in the levels of energy around the area.
If the PIR sensor is installed towards the changing environment, it may let off a false alarm due to the change in the way the air flows; however, IR sensors must be installed facing the motion.
IR sensors are usually only installed on the outside of properties, whereas PIR sensors are usually installed inside.
PIR sensors don't actually emit the infrared; objects give the sensor infrared rays. This differs from IR sensors, which do actually infrared.