Multi-Speed Versatility: Four-speed taps allow for precise CFM adjustments to match the specific ductwork static pressure requirements

The United Electric H400K-456-M540 is a high-performance differential pressure switch engineered for precision monitoring in demanding HVACR and industrial process environments

The self-aligning screen design ensures a consistent seal within the housing

Simplified Field Installation: Pre-configured pilot tube connection and electrode positioning reduce labor time during HVAC service calls

ensuring the unit maintains its original SEER and HSPF ratings without compromising ventilation system performance

Siemens Building Technology QAE2030.010 Sensor 326010-701 Multi-Speed Versatility: Four-speed taps allowThe Siemens QAE2030. 010 is a field proven immersion temperature sensor designed for high accuracy monitoring in hydronic HVAC and Building Automation Systems (BAS). Engineered with a 10k Ohm Type 2 NTC thermistor, this sensor delivers a precise resistance based output signal, maintaining a calibration accuracy of 0. 4F at 77F. The unit features a durable 4 inch 300 series stainless steel probe and includes a metal thermowell to ensure rapid thermal