The Hörmann HSM4-40 is a remote control with a dark gray housing, gray buttons and a frequency of 40.685 MHz.
Affordable alternative available: Check out the VS-HSM-40 (including key fob).
Attention!
If your remote has blue keys, it is 868 Mhz and you need a different model.
Gray keys = 40 MHz, HSM4-40 is the correct model for you.
Blue keys = order the HSM4-868 or the VS-027-868-H .