| WARNING Conduct soundings in a safe environment and in accordance with all applicable restrictions and regulations. |
| WARNING Do not use the radiosonde in an area with power lines or other obstructions overhead. Make sure that you check the area for such obstructions before using the radiosonde. |
| WARNING Do not use the radiosonde without consultation and cooperation with local and other applicable aviation authorities. |
| WARNING Vaisala recommends the use of a parachute even if it is not required by applicable restrictions. |
| CAUTION Do not modify the unit. Improper modification can damage the product or lead to malfunction. |
| CAUTION Do not use the radiosonde for any purpose other than for soundings. |