It is used to deliver materials in chaotic scenes and carry fire-fighting materials through the fire area, which is not conducive to the transportation area of ​​vehicles and ships and requires efficient and fast transportation. Solved the situation that the materials are damaged when the general drone is hovering to deliver materials.● High-precision GPS module to record the current latitude and longitude position ● Long-distance digital radio, a 3-5km transmission range, can be upgraded to 3G/4G network transmission. ● It can be equipped with 12 monitoring probes, including PM1.0, PM2.5, PM10, temperature, humidity, formaldehyde, VOC harmful gases, and other atmospheric pollutant monitoring.● Product size: 210mm*180mm*192mm ● Product weight: 500g ● Working voltage: 12-25V ● Megaphone power: 20W/12V ● Communication distance: 5km ● Working altitude: 50-100m (when the altitude is 50m, the volume is about 80 decibels) ● Maximum volume: 110 dB ● Operating temperature: -20°C - 55°C ● Ambient humidity: 85%● Overall length of the body: 2340mm ● Body width: 2340mm ● Body height: 530mm ● Maximum take-off weight: 28kg ● Maximum mission load: 13kg● Maximum battery life: 55min ● Maximum flight altitude: 300m ● Wind resistance level: Level 5 ● Hover accuracy: -- Horizontal ± 1m -- Vertical ± 0.5m