Description
The Resideo GS250 is a professional-grade dial thermometer engineered for precise, reliable temperature monitoring in hydronic heating, cooling, and boiler systems. Its large 2-1/2 inch dial delivers at-a-glance readability, while the included brass thermowell allows the thermometer to be safely removed or replaced without draining the system — saving time and reducing downtime during maintenance and service calls. Built to perform in both residential and commercial HVAC environments, the GS250 delivers consistent accuracy that helps technicians optimize system efficiency and ensure proper operation over the long term. The integrated well design adds a layer of durability, protecting the sensing element and extending service life even in demanding, high-cycle applications.
Key Features
- 2-1/2 inch large, easy-to-read dial for quick temperature monitoring
- Includes brass thermowell for safe, tool-free service access
- Remove or replace thermometer without draining the system
- Accurate temperature measurement optimizes hydronic system performance
- Rugged construction delivers long-term reliability in demanding environments
- Suitable for boilers, hydronic heating/cooling, and water heating applications
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