7000Warning General warning
7002Warning Fork Lift trucks, Warning vehicles
7220Warning compressed gas
7588Warning Overhead Fixed Obstruction
7283Warning Battery Charging
7394Warning, beware of tail rotor
7589Warning, Exhaust fumes
7025Warning Slippery Surface
7043Warning Trip hazard
7044Warning Mind Your Head
7550Warning Hot water
7561Warning Hot surface
7303Warning Low oxygen levels, Caution Low oxygen levels
7137Warning Explosion risk
7206Warning Beware of sudden loud noises
7212Warning hazardous area