Air flow monitor elect. KLSW3

The air flow monitor for duct installation monitors the air velocities in fans, ventilation ducts or central ventilation units. Application, for example, for monitoring electric heating registers or humidifiers for falling below a set air volume flow limit value. The switching point can be selected by means of a built-in potentiometer. The relay position is indicated by an LED. It has an adjustable start-up delay of 15 to 120 seconds.