The System Sensor ST-3 is a professional-grade metal duct sampling tube engineered for precise air monitoring in commercial and industrial HVAC systems

Engineered for compatibility with standard 1/8" NPT or 1/4" NPT valve bodies

this motor operates at a consistent 1050 RPM and features reversible CW/CCW rotation to match specific cabinet configurations

Reliable Performance: 1/5 HP rating provides consistent torque for maintaining target CFM levels in high-cycle environments

Mitsubishi Electric E22D38444 Board 326058-757 The System Sensor ST-3 isThe Mitsubishi Electric E22D38444 Noise Filter P. C. Board is a specialized genuine OEM replacement component designed for Mitsubishi MXZ series outdoor units and MSY MSZ mini split systems. This noise filter PCB serves as a critical electrical barrier, suppressing electromagnetic interference (EMI) and line noise that can compromise the performance of sensitive inverter power boards. Acting similarly to a single pole contactor with an integrated