3A 250V Green Push Button Lock Type ESP Boards The MQ-7 sensor module can

The MQ-7 sensor module can be easily interfaced with microcontrollers

Long-life compare as bulbs indicators

which are Orange

These are Metal Film Resistor with a value of 47 ohm 2W and tolerance of ±5%

It has a typical forward voltage of 2

3A 250V Green Push Button Lock Type ESP Boards The MQ-7 sensor module canThe ON OFF Locking type push switch is used in control circuits for controlling the contactor, relay, electromagnetic starter, and other electronic circuits. This switch can also be widely used in car or home latching types. This switch is turned on when push down and turned off when push down again. This is a locking type switch. Specification Voltage Current Rating 3A @250V Colour Green & Black Type Self Lock Type Button Diameter 12mm Dimension 40mm