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3-inch temperature gauge with solder connection, probe and thermowell

Legend Valve

Legend Valve 800-655 3" Temperature Gauge 3/4" Solder 1" Probe Thermowell 60-280°F

SKU CH-5B6M-TACJY

A 3 inch temperature gauge with 3/4 inch solder connection, 1 inch probe and thermowell reading 60 to 280 degrees Fahrenheit

  • Accurate temperature monitoring across a 60 to 280°F range
  • 3/4" solder connection simplifies installation on compatible piping
  • 1" probe with thermowell protects the sensor from direct fluid contact
  • 3" dial face provides clear, at-a-glance readings for HVAC systems
  • Legend Valve manufacturing ensures reliable performance in boiler and radiator applications

3-Inch Temperature Gauge For HVAC Systems

This 3-inch temperature gauge is designed for hydronic heating installations. It mounts via a 3/4-inch solder connection and includes a 1-inch probe with a thermowell. The instrument suits technicians and facility managers monitoring boiler or radiator loops.

Temperature Range And Connection Limits

The gauge reads from 60 to 280 degrees Fahrenheit, covering typical hydronic supply and return temperatures. Its 3/4-inch solder fitting restricts installation to copper piping of that exact size. The fixed 1-inch probe length sets the insertion depth into the thermowell.

60-280°F Range Determines Suitability

The 60 to 280 degree Fahrenheit span decides whether this gauge matches the system’s operating window. Processes running below 60 or above 280 degrees require a different instrument. Buyers needing a wider or lower range must select another model.

How it compares

Measured against everything we stock in Radiator Fans & Boiler Parts, at today’s prices. Recalculated every night.

Price $16.99
Cheaper than about 73% of the 95 comparable items (median $25.99).

Specifications

Product
Brand nameLEGEND VALVE

Questions about this item

Which temperature range suits my boiler — the 60-280°F scale or something wider?

The gauge reads 60-280°F, so it covers typical hydronic heating systems; choose it if your operating temperatures stay inside that band.

What does the 60-280°F reading tell me once the gauge is installed in the system?

It shows the actual fluid temperature at the probe tip, letting you verify the boiler is running within the design range.

How does the 3/4" solder connection limit the piping I can use?

The 3/4" solder end fits standard copper tube of that size; the probe and thermowell insert 1" into the flow.

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