• Automatic Induction: High level when someone enters the range, low level when they leave.
• Photosensitive Control: Optional, not installed by default. Purchase and install a photosensitive resistor if needed.
• Trigger Modes: L (non-repeatable) and H (repeatable); H is default.
  • Non-repeatable: Output high to low after delay time.
  • Repeatable: Output stays high if motion is detected during delay time.
• Blocking Time: Post-sensing, module has a 3-4 second blocking time with no sensing.
• Voltage Range: Operates between DC5V to 20V.
• Micro-power: Quiescent current 65 microamps, suitable for battery-powered devices.
• Output Signal: High-level signal compatible with various circuits.

Usage Instructions:

• Allow 1 minute for module initialization after powering.
• Avoid placing the sensor near light sources or where it can be affected by wind.
• Install the sensor parallel to the direction of human activity for best results.

Attention Points:

• Voltage Requirements: Use a stable power supply within the specified voltage range with a good regulator filter.
• Proximity and Debugging: Keep the human body at an appropriate distance; touching the circuit can affect performance.
• Load Interference: Use a stable power supply and consider voltage isolation if interference occurs.
• Indoor Use: Avoid sunlight and strong RF fields; shield if necessary.
• Installation: Enclose in a sealed box to prevent false signals.
• Detection Angle: Use opaque tape to adjust if less than 90 degrees.
• Sensor Sensitivity: Linked to the direction of human movement relative to the sensor.
• Probe Placement: Mount on the reverse side of the circuit board; connect with a shielded cable shorter than 20 cm.