This PIR (Passive Infrared) motion sensor detects human/animal movement through infrared heat signatures, making it ideal for security alarms, automatic lighting, and energy-saving systems. With adjustable sensitivity and time-delay control, it offers reliable detection up to 7 meters.
Key Benefits
✔ Low False Alarms – Dual pyroelectric sensors for accuracy
✔ Adjustable Settings – Tune detection range & trigger duration
✔ Ultra-Low Power – Ideal for 24/7 operation
✔ Easy Integration – Digital output for microcontrollers
Technical Specifications
Core Specifications
Detection Range: 3–7 meters (120° cone angle)
Operating Voltage: 4.5V–20V DC (5–12V recommended)
Output Signal: Digital (TTL) – HIGH when motion detected
Trigger Modes: Repeatable (default) or Single-shot
Sensor Type: Dual-element pyroelectric infrared
Adjustments
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- Sensitivity Potentiometer: Range tuning (3–7m)
- Time-Delay Potentiometer: 0.3s–5min trigger duration
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Physical Properties
Dimensions: 32mm × 24mm × 18mm
Lens: Fresnel lens array (enhances detection)
Mounting: 2x M3 screw holes
Why Choose This PIR Sensor?
✔ Plug-and-Play – Compatible with Arduino/ESP/RPi
✔ Energy Efficient – Draws <60μA in standby
✔ Weather-Resistant – Works indoors/outdoors (avoid direct rain)
Common Uses:
Automatic room lighting
Intruder alarm systems
Pet monitoring devices
Smart home occupancy detection
Pro Tips:
Avoid false triggers: Mount away from heaters/A/C vents.
Pet immunity: Angle sensor downward (detects hip-level movement).
Wiring: Use 10KΩ pull-down resistor on output pin if unstable.
Package Includes:
1 × PIR Motion Sensor Module