The Siemens QAE2120.010 is a passive immersion temperature sensor designed for use in heating, ventilation, and air conditioning (HVAC) systems. It features an LG-Ni 1000 sensing element and a 100 mm immersion length, making it ideal for accurately measuring water temperature in pipes and tanks. This sensor is commonly used for controlling flow temperatures, limiting return temperatures, or controlling domestic hot water (DHW) temperatures. The sensor includes a protection pocket with a threaded nipple for easy installation.

Key Features:

• Temperature range: -30°C to +130°C
• Sensing element: LG-Ni 1000
• Immersion length: 100 mm
• Nominal pressure: PN 10
• IP42 protection rating (upgradable to IP54 with cable gland)

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