Electric winch features 10KG maximum payload and 25m rope length, powered by 22-56V battery with 0.1-0.6m/s retractable speed. Equipped with electric release device, it supports SBUS standard control and optional remote control PWM RS232 RS422. It has multiple functions including automatic pay-off when touching the ground one-click cargo release one-click rope breakage limit stop and fault alarm, with real-time data display and custom setting functions via RS232 RS422 for ground station development.