These gauges must be used with the PLX Devices Vacuum Boost Sensor Module (SM-Vac-Boost)

#PLX-DM5-VacBoost-Black. PLX Devices DM-5 52mm Vacuum / Boost LED Gauge in Black Black 2-1/16" (52mm) Standard Vacuum / Boost Gauge for use with PLX Devices SM-Vac-Boost $75.99 Qty:

#PLX-DM5-VacBoost-White. PLX Devices DM-5 52mm Vacuum / Boost LED Gauge in White White 2-1/16" (52mm) Standard Vacuum / Boost Gauge for use with PLX Devices SM-Vac-Boost $75.99 Qty: