A bomb proof meter movement in the AutoMeter Mechanical Nitrous Pressure Gauge provides the robustness necessary to deal with ultra high pressures found in your brake system. These race proven gauges back up their toughness with the most precise bourdon tube meter movement available for unparalleled accuracy. A -4an connection on the rear of the gauge simplifies installation and no electrical connection is necessary for operation, making it ideal for hardcore track cars.Features: Traditional incandescent lighting illuminates around the perimeter of the dial 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 Gauge kit includes, bulb and socket assembly, red and green bulb covers, mounting hardware, and detailed instructions for installation Gauge threaded for -4AN, allowing an easy installation into the nitrous system Product Description: 2-1/16" Nitrous Pressure Gauge, 0-2000 PSI, Ultra-LitePit Stop USA offers Auto Meter Ultra-Lite Mechanical Nitrous Pressure Gauge - 2-1/16 in. 4328 at low everyday prices. Be sure to check out all our products from Auto Meter including Auto Meter Mechanical Nitrous Oxide Pressure Gauges and Auto Meter Nitrous Oxide Pressure Gauge.