Description
Reliable Dual-Function Monitoring for Boiler & Hydronic Systems
The Resideo TD-165 Tridicator combines pressure and temperature monitoring into a single, compact gauge — eliminating the need for two separate instruments. Engineered for boiler and hydronic heating systems, it delivers clear, accurate readings up to 75 PSI and across a temperature range of 15°C to 160°C, giving technicians and operators the critical system data they need at a glance. The standard 1/4 inch NPT connection ensures straightforward installation on compatible boiler fittings and piping, while its durable construction is built to withstand the demands of residential and light commercial heating environments.
Key Features
- Dual-function tridicator displays both pressure and temperature in one compact unit
- Pressure range up to 75 PSI for accurate system monitoring
- Temperature range of 15°C to 160°C suitable for a wide range of heating applications
- 1/4 inch NPT connection for quick, standard installation on boiler fittings and piping
- Compact, space-saving design ideal for boiler and hydronic heating systems
- Durable construction engineered for long-term reliability in demanding environments
Applications
- Residential boiler systems
- Light commercial hydronic heating systems
- Hot water heating and distribution systems







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