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Vibration Switch ModuleFeatures-No direction, any angle can trigger the work.Sensitivity switches can be selected for the trigger sensitivity according to circuit requirements.This switch is suitable for the trigger of the small current circuit...

MQ-3 Alcohol Detector Gas Sensor ModuleFeatures-Signal output light indicator.Analog and level signal output.TTL output valid signal is low.  (When the output low signal light can be directly connected to microcontroller or relay module).The carbon monoxide detection with better sensitivity.It ..

HP 520-290-505 KVM Interface Adapter (Seal Pack)..

Heart Beat Pulse Sensor AmpedFeatures-A Color-Coded Cable, with standard male header connectors. Plug it straight into an Arduino or a Breadboard. No soldering is required.The Pulse Sensor has 3 holes around the outside edge which makes it easy to sew it into almost anything.Visualization software (..