Liquid Filled Pressure Gauge 0-100 PSI

The Liquid Filled Pressure Gauge 0-100 PSI by AEM Electronics is a precision mechanical analog instrument designed for applications requiring reliable real-time pressure monitoring. Built for technicians, mechanics, and industrial professionals, this gauge delivers accurate readings across a wide operating range, making it essential for automotive tuning, pneumatic systems, hydraulic circuits, and general equipment diagnostics. The full-sweep analog display provides immediate visual feedback without electronic components or calibration drift, ensuring dependability in demanding environments.

This liquid-filled design protects the internal movement from vibration, shock, and pressure spikes, which extends instrument lifespan and improves accuracy under harsh conditions. The 1-1/2 inch diameter face offers clear, easy-to-read markings with a black background for high contrast visibility in any lighting. A 1/8 inch NPT threaded port enables secure, leak-free installation on standard pneumatic and hydraulic lines, while the mechanical movement responds instantly to pressure changes without lag or electronic failure points. The compact 4.4 x 2.4 x 5 inch profile and lightweight 0.3 lb construction allow flexible mounting in tight spaces or portable test rigs.

Engine builders, fuel system technicians, and air suspension shops rely on this gauge for precise pressure verification during setup and troubleshooting. The 0–100 PSI range suits low-pressure applications such as fuel rails, boost circuits, and pneumatic tool supplies. Installation is straightforward: thread the 1/8 inch NPT adapter directly into existing ports on manifolds, rails, or accumulator tanks. For safety-critical work, verify compatibility with your system's maximum operating pressure and fluid type before installation. This is a permanent workshop tool that delivers consistent performance year after year with zero battery or electronic maintenance required.