Monitor the onboard air that actuates locking differentials from within the cabin of your vehicle with this mechanical AutoMeter Ultra-Lite Air Locker Gauge.

This precision gauge includes .125 in. nylon line (10 ft.), .125 in. NPT compression fittings, .250 in. NPT adapter, bulb and socket assembly, red and green bulb covers, mounting hardware, and installation instructions.

Features:

• Race-proven accuracy
• Electrical system is not required
• Durable performance
• Incandescent lighting around the dial perimeter