Value Brand Compound Gauge 3-1/2 in Test -30 to 0 to 30 in Hg/psi

Product Identity

The Value Brand compound gauge is a 3-1/2 inch test instrument designed for measuring vacuum and pressure in automotive and industrial systems. It displays primary readings from -30 to 0 to 30 in Hg/psi with a secondary scale in kPa. The ABS plastic case and brass wetted parts suit general-purpose workshop use.

Setup Verification

Confirm the 1/4 inch MNPT bottom connection matches your existing port before ordering. The gauge is not panel mountable and is not liquid filled, so plan for direct stem mounting or an appropriate adapter. Ensure the +/-3-2-3 percent accuracy class meets the tolerance requirements of your application.

Build Quality & Daily Use

The black ABS plastic case resists impact and chemical exposure in typical shop environments. Brass and bronze wetted parts provide compatibility with common non-corrosive fluids and gases. The 2/1 smallest graduation on the primary scale allows clear reading of vacuum and pressure values during routine diagnostics.