![T20](https://cdn.yun.sooce.cn/4/54399/jpg/159281310953794658b72ee410322.jpg?version=1592812934)
SV Tech SV-T20 tethered drone, has successfully passed the major 21 tests and is officially certified by CNAS (China National Accreditation Service for Conformity Assessment). The major 21 tests include 116-meter altitude, 21kg payload, 8-meter/s wind resistance, consistent 8-hour anchored in sky, and 3000 V dielectric strength, etc.