Wika 20025D005G2 Bimetal Dial Thermometer 0-200F Back Mount

Product Description

The WIKA 20025D005G2 is a bimetal dial thermometer designed for temperature measurement in HVAC, plumbing, and light industrial applications. It reads from 0 to 200 degrees F and features a 2.5-inch stem with a back-connected mount, making it suitable for insertion into pipes, tanks, or fittings where a rear-entry configuration is required. The housing is constructed from 18-8 stainless steel, providing corrosion resistance in wet or chemically active environments. Accuracy is rated at plus or minus 1.0 percent of full scale. HVAC technicians, plumbers, and mechanical contractors install this thermometer as part of system commissioning, service diagnostics, or permanent monitoring setups.

This thermometer is well suited for residential and light commercial HVAC systems, hydronic heating loops, domestic hot water lines, and process piping where a local temperature readout is needed. The back-connection design allows the dial face to sit flush against a panel or insulation while the stem penetrates the pipe or vessel wall. It is a direct-reading instrument requiring no power source, making it a straightforward addition to any mechanical system.

Key Features

• Temperature range of 0 to 200 degrees F, suitable for hot water and HVAC supply and return lines
• 2.5-inch stem length for standard pipe wall and fitting insertion
• Back-connected mount keeps the dial face accessible in tight or panel-mounted installations
• 18-8 stainless steel housing and stem for corrosion resistance in wet environments
• Plus or minus 1.0 percent full-scale accuracy for reliable field readings
• No external power required — passive bimetal sensing element

Compatibility

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

Installation Notes

Installation is typically performed by a licensed plumber or HVAC technician. Before installing or removing the thermometer, shut off flow and relieve pressure in the line to prevent burns or leaks. A thermowell is recommended for pressurized systems to allow removal without draining the line. Ensure the stem insertion depth is sufficient to reach the fluid medium and that the connection fitting is compatible with the thermometer's back-entry fitting size.