Tekmar Controls 670 Control 319825-402 or a temperature differential across

or a temperature differential across the valve body indicating internal bypass or a "bleeding" slide

Is this sensor suitable for deionized water

Key Benefits: Precise Load Management: Prevents inrush current spikes by staging heating elements in a controlled 15S21 sequence

The stainless steel construction offers excellent chemical compatibility with all common non-corrosive refrigerants

For systems rated up to 250 PSIG

Tekmar Controls 670 Control 319825-402 or a temperature differential acrossThe tekmar 670 is a high performance WiFi snow melting control designed specifically for the rigorous demands of commercial and residential hydronic or electric systems. Engineered for seamless integration, this 120Vac snow detector features a 3. 5 inch color touchscreen and is housed in a rugged NEMA 3 enclosure for reliable outdoor protection when required. For hydronic snow melting, it provides integral boiler return protection via mixing valve