providing a professional interface for monitoring the internal 24V circuit and safety limits

ensuring full cross-compatibility for field replacements

With 18" wire leads and a built-in auxiliary switch for end-of-travel signaling

this Apollo 78-RV series valve effectively handles thermal expansion by venting excess pressure

Lennox 17M50 Humidity Sensor Refrigerant providing a professional interface forThe Lennox 17M50 Humidity Sensor is a high precision relative humidity (RH) sensor kit designed for seamless integration with Lennox L Connection network building automation systems. Engineering specifically for wall mount installation, this 17M50 unit (catalog number 17M50, identical to 17M5001) serves as a critical feedback loop for commercial rooftop equipment, including LG, LC, LH, SG, and SC models. It facilitates advanced Humiditrol reheat