A robust and reliable four-button radio transmitter, designed to operate in tough and demanding environments. Its durable construction makes it both moisture and shock resistant , perfect for outdoor or industrial applications. The 4-button are clear and easy to press , making the transmitter easy to use even with gloves or for people with reduced hand strength. Instead of an LED, the transmitter indicates its function with a built-in buzzer , which gives a clear sound signal when a button is pressed. The radio transmitter is ideal for controlling door operators, gates, access control systems and other wireless applications where reliability is crucial. Thanks to the encrypted 64-Bit KeeLoq Hopping Code technology, the signal transmission is secure and protected against eavesdropping and copying. With its yellow and black design, the transmitter is both visible and stylish, and its robust housing means it can withstand both rough handling and weather conditions. A reliable solution for those who need a durable radio transmitter with high functionality.