For the zones at the risk of explosion, AE&T proposes explosion-proof sirens EEx D IIC T4 and EEx of IIC T4 with a choice of 32 sounds, among which its NFS 320001, as well as sirens of intrinsic safety EEx ia IIC T4. These sirens are approved ATEX.
AE&T also offers a vast range of explosion-proof optical warning signals. All these warning signals can be connected to explosion-proof junction boxes all dimensions.