This unit is technically identical to the LF24-MFT-2

Corrosion-Resistant Construction: Built to withstand the fluctuating humidity and airflow conditions common in industrial HVAC ducting

and compatible Broan-NuTone HRV/ERV models

826 specific gravity for precise HVAC pressure testing

This specific positioner spring is designated for use with the Johnson Controls D-3246 Series

Siemens Building Technology S55624-H105-A Sensor L99H008 This unit is technically identicalWhen you're commissioning a high performance system, the Siemens Building Technology S55624 H105 A Sensor is the reliable room operator unit you need for precision environmental control. Known technically as the QMX3. P34, this unit is engineered for seamless integration with Siemens DXR series controllers and broad KNX PL Link or KNX S Mode ecosystems. Featuring a segmented backlit display and tactile touchkeys, it provides clear local feedback and