Electronic siren multitones for applications of intrinsic safety. Electronic siren with approval ATEX. Classification the IInd 1G EEx ia IIC T4. Framework made of ABS pirorretardante with factor UL94V0. Protection degree IP65. High acoustic power (100 dB) and under consumption (25 mA). He has control of volume. Equipped with 49 selective tones. Tension of supply between 6 and 28 V. Temperature of functioning between-40 °C and 60 °C. Dimensions: Ø 89 x 99 mm.