Precision Machined SAE Threads: 5/16 male flare and 1/4 MPT connections specifically sized for compatibility with modern mini-split and refrigeration systems

it adheres to strict electrical tolerance standards

In a hydronic heating system

this OEM part provides the exact electrical ratings and mounting footprint required to restore factory system performance

Siemens Building Technology QFR9530.KIT Sensor 326058-758 Precision Machined SAE Threads: 5/16The Siemens Building Technology QFR9530. KIT represents a critical component for high performance environmental monitoring in commercial economizer and building automation systems. This comprehensive kit includes the QFR9530 duct surface mount sensor paired with the AQM5H prewired harness, a combination engineered to streamline the field installation process for HVAC contractors. By integrating both relative humidity and NTC 10k Type II thermistor