Single Button Transmitter, Product Type Transmitter, Includes Battery, Visor Clip, For Use With Garage Door Openers, Gate Operators, Color Black, Compatible with Grainger Part Number 8DFT2, 8RLJ4, 9JH02, 9V219, Compatible with Manufacturer Model Number FM134, FM500, FM502, RB743, Manufacturer Warranty Length 1 yr, Number of Buttons 1