Kodiak Controls 4201R-3.25-2-70 Probe

The Kodiak Controls 4201R-3.25-2-70 Probe is a heavy-duty boiler tridicator designed for simultaneous monitoring of system pressure and temperature. Engineered for the demanding environments of industrial HVAC and hydronic heating systems, this combination pressure and temperature gauge features a 3.25-inch dial housed in a rugged steel case. It provides a dual-scale pressure range of 0-200 PSI (and 0-450 ft/H2O) alongside a temperature range of 70-320°F (20-160°C), ensuring precise readings for high-temperature boiler applications.

Equipped with a 1/2" NPT lower connection and a 2-inch probe length, this HVAC tridicator utilizes a bimetal temperature element and a bronze Bourdon tube for consistent performance. The copper alloy wetted parts and synthetic window offer durability against mechanical stress, while the 3-2-3% accuracy rating meets standard contractor requirements for hydronic system balancing. This analog boiler gauge is a direct replacement for 4201 series multi-function gauges, providing technicians with a reliable, space-saving solution for real-time diagnostic monitoring in commercial and residential boiler rooms.

• Dual-Function Monitoring: Provides simultaneous 0-200 PSI and 70-320°F measurements to minimize the number of system penetrations required.
• Durable Construction: Built with a corrosion-resistant copper alloy movement and a black-finished steel case to withstand high-vibration environments.
• Easy Readability: Features a 3.25-inch high-contrast white aluminum dial with distinct red and blue scales for quick field assessments.
• Standard Fitting: Utilizes a common 1/2" NPT bottom mount for straightforward installation in standard boiler manifolds and piping.

• What is the thread size for the 4201R-3.25-2-70? This unit features a standard 1/2" NPT lower mount connection, compatible with most boiler tapping points.
• Does this gauge measure water height? Yes, the pressure scale is dual-rated for both PSI and feet of H2O, making it ideal for checking head pressure in hydronic circuits.
• Is the 2-inch probe length fixed? Yes, the probe (stem) length is exactly 2 inches, designed to sit well within the flow of the medium for accurate temperature transfer.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.