protecting the main control board and diagnostic sensors from irregular voltage

The robust NEMA 1 enclosure and dust-protected Pennswitch contacts offer long-term durability in demanding commercial environments

Enhanced Safety: Securely encloses gas-fired components to maintain negative pressure and prevent hazardous fume leakage

is a specialized HVACR refrigeration component engineered for precise refrigerant metering in low-tonnage applications

Laars Heating Systems 2400-446 Return Sensor 318518-761 protecting the main control boardThe Laars Heating Systems 2400 446 Return Sensor is a precision thermistor designed for critical temperature monitoring within the hydronic return loop. Engineered specifically for compatibility with Laars Endurance and Pennant series boilers, this NTC thermistor provides real time feedback to the integrated control board to maintain tight setpoint differentials. Proper installation of this OEM replacement sensor is essential for accurate delta T