SW-420 Vibration Sensor Module

SW-420 Motion & Vibration Sensor Module

The SW-420 module integrates a normally-closed metal vibration switch with an onboard LM393 voltage comparator. When stillness is maintained, the circuit conducts; upon vibration or shock, the contacts momentarily open, triggering a clean digital output pulse.

Specifications

• Sensor Element: SW-420 normally closed vibration switch
• Comparator: High-precision LM393 dual comparator
• Operating Voltage: 3.3V to 5.0V DC
• Dual Output: Digital switching output (0 and 1)
• Sensitivity Trimmer: Multi-turn potentiometer for threshold setting
• LED Indicators: Power indicator and digital output status LED