Honeywell TG250-UT 2.5″ Dial Thermometer with 1/2″ Thermowell

Honeywell TG250-UT Dial Thermometer Overview

The Honeywell TG250-UT is a reliable 2.5″ dial thermometer designed for accurate temperature monitoring in hydronic heating systems, boilers, and related plumbing applications. Featuring a 1/2″ thermowell connection, this thermometer installs directly into a pipe or fitting to provide continuous, at-a-glance temperature readings without the need for electrical power.

Key Features

• 2.5″ easy-to-read dial face for clear temperature indication
• 1/2″ thermowell connection for secure, leak-free installation into piping systems
• Designed for hydronic heating, boiler, and plumbing applications
• Durable construction built to withstand demanding HVAC and hydronic environments
• No external power required — fully mechanical, self-contained operation
• Compatible with standard 1/2″ pipe fittings and thermowell sockets

Typical Applications

• Hydronic heating systems
• Boiler supply and return lines
• Domestic hot water systems
• Commercial and residential HVAC piping

Why Choose the Honeywell TG250-UT?

Honeywell’s TG250-UT thermometer delivers dependable temperature monitoring in a compact, easy-to-install package. The 2.5″ dial provides a clear, readable display even in tight mechanical spaces, while the 1/2″ thermowell connection ensures a secure fit in standard hydronic piping configurations. Built to Honeywell’s exacting quality standards, this thermometer is a trusted choice for HVAC technicians and plumbing professionals seeking long-lasting performance.