Wika 20025A002G2 Bimetal Dial Thermometer -40 to 120F

Product Description

The WIKA 20025A002G2 is a bimetal dial thermometer designed for temperature measurement in HVAC, plumbing, and industrial process applications. It operates across a range of -40 to 120 degrees F (-40 to 50 degrees C), making it suitable for monitoring chilled water lines, heating systems, and general mechanical system piping. The thermometer features a back-connected mount for panel or pipe installations where the stem inserts into the process and the dial faces the technician directly. The stainless steel housing and 18-8 stainless steel stem construction resist corrosion in wet and chemically active environments. Accuracy is rated at plus or minus 1.0 percent of full scale.

This thermometer is commonly installed in residential and light commercial HVAC systems, hydronic heating and cooling loops, domestic water systems, and refrigeration equipment. The 2.5-inch stem length suits standard pipe well installations and direct immersion fittings. Back-connected mounting makes it a practical choice for panel-mounted instrumentation and tight-clearance installations where a bottom-connected instrument would not fit. Licensed HVAC technicians, pipefitters, and plumbers typically install this type of thermometer during new construction, system commissioning, or instrumentation replacement.

Key Features

• Temperature range of -40 to 120 degrees F (-40 to 50 degrees C) covers typical chilled and heating water applications
• Back-connected mount allows direct panel or pipe installation with the dial face oriented toward the technician
• Stainless steel housing and 18-8 stainless steel stem for corrosion resistance in wet or chemically active environments
• 1.0 percent full-scale accuracy rating suitable for field instrumentation and system monitoring
• 2.5-inch stem length fits standard thermowell and direct-immersion installations

Compatibility

Designed as an OEM-style replacement or new-installation bimetal thermometer for residential and commercial HVAC, hydronic, and plumbing systems requiring a back-connected dial thermometer with a 2.5-inch stem.

Installation Notes

Installation should be performed by a licensed HVAC technician, plumber, or pipefitter. Shut off the relevant system and depressurize the line before inserting or removing the stem from a thermowell or direct-immersion fitting. Use thread sealant or appropriate fittings compatible with the system fluid to prevent leaks at the connection point. Verify that the stem is fully seated in the thermowell or immersion fitting to ensure accurate readings.