A.J. Antunes 8224212053 SML Air Pressure Switch W/Amber Neon Lamp

A.J. Antunes 8224212053 SML Air Pressure Switch with Amber Neon Lamp is an essential element of HVAC systems. It measures the pressure in the HVAC and checks if the right conditions are together with the proper functioning of the equipment. It works under pressure and if the pressure is less than a given value, the switch is turned on; the action may be to turn on a light to indicate low pressure or turn off the system to avoid more pressure.