Applicable Chip Models: This universal gate remote control is suitable for Hrmann HSM2 HSM4 HS2 HSE4 HSZ2HSP4-C HSD2-C (all manufacturers of these models). Please make sure your original remote is a Hrmann Blue Buttons 868MHz. Buttons of other colors (eg green, yellow, orange, white, black) and other frequencies (eg B. 433 MHz, 40 MHz) are not compatible. Premium Quality: This universal gate remote control is made of high quality plastic material with rigorous craftsmanship, to provide you with long service life and high durability. It is characterized by high accuracy and high copying efficiency, and the code is not easy to be lost. Widely Used: This 868MHz universal gate remote control is suitable for vehicle remote control electric, smart home remote control, electric gate remote control, garage door remote control, telescopic door remote control, barrier remote control and rolling gate remote control, alarm, the remote control used, to various fixed codes, learning code remote control and lighting remote control, etc. Practical Tool: The frequency of this remote control is 868MHz, and the transmission distance is 50-100m (outdoor), which provides a new remote control experience and makes daily life more comfortable. Equipped with four buttons, it makes operation easier. Note: If the chip remote control is different from the above model, in the prefix (letter), even for chips from different manufacturers may be different in the model prefix, this option applies. But the part number must be the same to ensure high strength and durability.