Mechanical boost gauges have become the staple in boost pressure monitoring for all types of engines, gasoline, diesel, or otherwise. Ultra-precise bourdon tube meter movement ensures accuracy and durability not seen anywhere else in the industry. A simple 1/8” NPT pressure connection requires no electrical hookup for operation. Includes 1/8” NPT fittings and nylon line kit.Features: Modern blue LED through-the-dial lighting provides clear visibility during nighttime use AutoMeter’s race proven mechanical instruments provide trusted accuracy while being simple to install No electrical system required for gauge operation - compatible with every street or race vehicle Mechanical movements provide accuracy and durability even in the harshest environments Gauge kit includes 1/8” nylon line, 1/8” NPT compression fittings, 1/4” NPT adapter, mounting hardware, and detailed instructions for installation Product Description: 2-1/16" Boost Gauge, 0-35 PSI, C2Pit Stop USA offers Auto Meter C2 Mechanical Boost Gauge - 2-1/16 in. 7104 at low everyday prices. Be sure to check out all our products from Auto Meter including Auto Meter Pressure Gauges.