General description High-quality replacement remote control for garage doors, compatible with various Novotron models. This pack includes two 2-channel remote controls, designed for easy programming and operation. Technical specifications Frequency: 433.92 MHz Material: ABS Color: Blue Measurement allowed error: +/- 1-3 cm Compatibility and accessories Compatible with NOVOTRON Tormatic models: 502 MAX43-2, 504 MAX43-4, 512 MIX43-2, 522, 524 Pack includes: 2 x garage door remote controls Installation Programming required with your garage receiver Usage Easy to operate for controlling two garage doors