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Multi-Orientation Mounting: The housing supports versatile installation
The ZD24X20TZ is rated to operate reliably in systems with static pressures up to 1
allowing for flexible wiring as normally open or normally closed via three screw-type terminals
making it a staple for contractors requiring a 7-day programmable timer that can withstand rigorous field use
Siemens Building Technology QAA2230.EWSN Sensor 318518-761 Multi-Orientation Mounting: The housing supportsThe Siemens Building Technology QAA2230. EWSN is a professional grade room temperature sensor engineered for precise environmental monitoring in commercial and industrial HVAC applications. This 10k Ohm Type 2 thermistor offers high accuracy sensing within a range of 32F to 122F (0C to 50C), making it a staple for Building Automation Systems (BAS) requiring reliable NTC resistance signals. Designed as a "blank front" unit, the EWSN model features no