Dwyer Instruments SFI-100-1/2 Indicator 318973-401 managing compressor speed regulation and

managing compressor speed regulation and communication between system components

preventing the rectification of the AC voltage into the DC microamp signal required by the control board

this OEM replacement part is engineered to interrupt the electrical circuit if the heater section exceeds its maximum operating threshold of 190 degrees Fahrenheit

and system arming

Dwyer Instruments SFI-100-1/2 Indicator 318973-401 managing compressor speed regulation andThe Dwyer Instruments SFI 100 1 2 is a field proven midwest sight flow indicator designed for immediate visual verification of fluid movement. Integrated with a 1 2" NPT female connection, this unit features a single window design with a high visibility rotating impeller that provides clear confirmation of flow rates in both liquid and gas applications. Constructed with a heavy duty bronze body and a tempered glass window, it is built to withstand the