Red Pointer For Quick Glance Monitoring. 1 Year Limited Warranty. Modern LED Through The Dial Lighting. 12 And 16 Volt Compatible. Incl. 1/8 in. NPT Temp Sender. Incl. 3/8 And 1/2 in. NPT Adapters. Incl. Mounting Hardware/Installation Instructions. Air-Core Electric Instrument Provide Quick And Accurate Readings.