Liquid level and liquid/moisture indicators allow for the fast, safe inspection of the refrigerant fluid conditions in the liquid line for regular flow and for the presence of moisture. Liquid/moisture indicators consist of a sensitive ring element that changes colour, from green to yellow, according to the percent moisture in the system. If the charge and operating conditions of the system are normal, the refrigerant fluid appears perfectly liquid underneath the “lens” of the indicator. When the sensitive element becomes “yellow”, it’s time to replace the filter dryer. The presence of bubbles indicates that the refrigerant fluid is partially evaporating along the liquid line.



Liquid level and liquid/moisture indicators are designed for installation in air conditioning systems (civil and industrial) and refrigeration systems that use the following refrigerants: HCFC (R22), HFC (R134a, R404A, R407C, R410A, R507), HFO and HFO/HFC blends.