making it the reliable choice for maintaining factory-spec performance in forced air heating systems

allowing for easy zero-point adjustments without removing the dial face

The PR-274-R1-VDC features a robust NEMA 4 enclosure

Designed for precise thermal monitoring

making it suitable for both chilled water and hot water heating systems

Functional Devices RIBR24D Relay 326070-701 making it the reliable choiceThe Functional Devices RIBR24D is a versatile DIN rail mount relay engineered for reliable performance in HVAC control circuits and building automation systems. This 10 Amp SPDT relay features a dual voltage coil, accepting either 24Vac or 24Vdc, making it a standard component for interfacing low voltage controllers with higher voltage loads. The dry contact relay configuration ensures clean switching for pilot duty applications or direct motor