Built with a durable probe housing and a standard two-wire thermal connection

Can this water gauge be used for low-pressure steam applications

and 3155 Series units

specifically engineered for pump-up or high-level fill applications where the relay remains energized while the probe is dry

Integrated as a primary safety limit

Siemens Building Technology GMA131.1U Actuator R-407C Built with a durable probeThe Siemens Building Technology GMA131. 1U is a specialized OpenAir electronic damper actuator engineered for commercial HVAC applications. This 24V spring return actuator provides 62 lb in torque (7 Nm), making it an ideal choice for managing return air, mixed air, and exhaust dampers in both constant and variable air volume (VAV) systems. Designed with three position control (floating), it allows for precise positioning while ensuring a reliable