Backlit, internally lighted inclinometers. Operates using 6 low voltage LEDs. Overload protected. Operates on 12VDC current. Inclinometer has 2-16 inch leads of 22 Gauge wire. Numerous lighted models are available. Call or e-mail for OEM pricing. www.tiltmeter.com Phone: 816-587-9814 Fax: 816-587-4294