MQ-3 Alcohol Gas Detector Alcohol Ethanol Sensor Module (Blue)
22K Ohm - 1/4W Carbon Flim Resistor
Hall sensor with a digital display module (speed / counter / timer)
Anti-corrosion Type Ball Float Liquid Water Level Sensor
TIP120 TO-220 Darlington Complementary Silicon Power Transistors
MAX7219 dot matrix module ( Single )