The dial of the universal bimetallic thermometer is connected to the temperature-sensing protective tube through a special universal joint, allowing the dial to rotate freely and be locked at any position.

1. Unparalleled Installation Flexibility: The greatest advantage. During installation, there is no need to precisely consider the final orientation of the dial. The protective tube can be fixed first. After installation, the dial can be easily rotated to the best position (horizontal, upward, or downward view) based on the most convenient observation angle on site, and then locked. This completely resolves the contradiction between the "installation position" and the "observation angle".
2. Adaptability to Any Complex Space: In complex working conditions with dense pipelines, numerous equipment, and narrow observation channels, the universal type is the only option that can ensure a clear observation angle. No matter at what angle the protective tube is inserted, the dial can always be "twisted" to a place where you can see it.
3. Facilitates Dense Installation and Uniform Orientation: When multiple instruments are installed side by side, even if their respective protective tubes point in different directions due to process reasons, the universal head can be adjusted to make all dials neatly face the same observation direction (such as all facing the inspection passage), greatly enhancing aesthetics and readability.
4. Retains All the Advantages of Bimetallic Thermometers: Rugged, intuitive, power-free, and moderately priced, etc.

1. Complex process pipelines: In petrochemical and pharmaceutical plants, where pipelines crisscross and observation paths are irregular.
2. Complete equipment and modules: Compressor units, generator sets, boilers, etc., where instruments pre-installed by equipment suppliers need to adapt to different observation habits of end users.
3. Renovation projects: Adding temperature measurement points to existing equipment, where installation locations are restricted by the existing structure and only universal types can be used to "find the right angle".
4. Cabinets or panels where instrument panels need to be uniformly oriented.

The universal bimetallic thermometer is a smart solution that "trades design flexibility for installation universality".