Based on the thermal principle, the sealed probe contains two resistors, one of which
The unheated is used as the detection resistance, and the other unheated is used as the reference resistance
When the mass flows, the heat on the heating resistor is taken away, the resistance value is changed, and two resistors
The difference is used as the basis for judging the flow rate. No moving parts, maintenance free, easy installation,
One model is applicable to various pipe diameter requirements, with continuously adjustable switching value and extremely low pressure
Loss, compact structure, LED display flow trend and switch status.