
8 Buttons Double Speed Button Radio Remote Control Crane Remote Control. IP68 Waterproof & Dustproof: Resists harsh environments including high oil pollution and high temperatures. Dual Speed Button Control: Single press for low speed, double press for fast speed for flexible operation. Long Button Life: Alpine brand buttons ensure a service life of 12 million times with sensitive contacts. Customizable Transmission Distance: Standard 225 meters, can be customized up to 5 kilometers based on needs. Emergency Stop Function: Dedicated red button meets safety requirements for immediate emergency stops. High Stability Signal: Strong penetration and resistance to interference for stable operation in complex environments. Battery Voltage Warning: Automatically shuts off circuit when voltage is insufficient to prevent damage. Premium Component Quality: Uses TE relays, TI/ABOV chips, and RENESAS/ROHM transistors for reliability.