Thread-mounted thermometers are designed for fixed-position usage directly in a pipe, tank, or other process or in conjunction with a thermowell. Analog dial thermometers and battery or light-powered digital thermometers are designed for most applications, with additional liquid-in-glass options for hot water/HVAC systems. Fixed-angle dials have solid construction, while adjustable-angle options allow the user to rotate the scale for improved readability. Features such as a glow-in-the-dark dial face for low-light conditions, shatterproof lens material, and corrosion-resistant stem coatings may meet more demanding applications.