Yellow Jacket 49001 High Side Gauge

The Yellow Jacket 49001 High Side Gauge is a professional-grade replacement for contractors servicing legacy systems utilizing R-12, R-22, and R-502 refrigerants. This 2-1/2" red pressure gauge features a working range of 0 to 500 PSI, making it the standard choice for high-side manifold monitoring. Built with a rugged steel case for jobsite durability, the dial includes high-visibility colored temperature scales that simplify data interpretation during system diagnostics. To ensure precise readings in the field, this 0-500 PSI manifold gauge utilizes Flutterless technology with an integrated surge protector, effectively neutralizing needle pulsation caused by compressor cycles. The unit is designed with a standard 1/8" NPT Male connection, ensuring seamless manifold gauge compatibility with most service sets. Rated at Class B accuracy (3-2-3%), this NIST-traceable instrument provides the reliability required for accurate pressure testing and charging procedures. Note that this dry gauge is intended for refrigerant monitoring only and is not suitable for nitrogen pressure testing.

• Flutterless Technology: Features a built-in surge protector to dampen needle movement for stable, accurate readings under pressure.
• High-Visibility Dial: 2-1/2 inch face with color-coded scales for R-22, R-12, and R-502 refrigerants and temperature units in Fahrenheit.
• Contractor-Grade Construction: Encased in a heavy-duty steel shell to withstand the rigors of commercial and residential service calls.
• Universal Fitting: Equipped with a standard 1/8" NPT MPT connection for easy installation on existing manifold blocks.
• NIST Traceable Accuracy: Meets Class B standards (3-2-3% accuracy) for dependable field diagnostics.

• Is this gauge compatible with R-410A systems? No, this specific model is calibrated for R-22, R-12, and R-502. Using it with high-pressure R-410A systems may exceed the 500 PSI limit and damage the internal mechanism.
• Can I use this Yellow Jacket 49001 for pressure testing with Nitrogen? No, technical specifications indicate this gauge is not meant for use with nitrogen; it is designed strictly for refrigerant pressure monitoring.
• What size fitting does this gauge use? This unit features a 1/8" NPT Male connection, which is the standard size for most manual manifold gauge sets.

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.