Indoor/outdoor air warning horn TDE(Ex)

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TDE Ex Series – Pneumatic Horn for Hazardous Areas The TDE Ex Series is a safe, non-electrical acoustic warning device for hazardous industrial and marine zones where electrical equipment poses an ignition risk. Powered by compressed air, it is ideal for explosive atmospheres with flammable gases or dust. Its robust, corrosion-resistant design ensures reliable long-term use in demanding conditions while meeting ATEX and IECEx standards. Available in three models, the TDE Ex Series offers frequency options to suit different environments: • TDE 198 Ex (660 Hz) – High-pitched for close-range or noisy areas • TDE 350 Ex (377 Hz) – Mid-range tone for general signalling • TDE 450 Ex (307 Hz) – Low-pitched for long-range coverage Choosing the right tone helps optimise sound penetration based on ambient noise and distance. As a spark-free, pneumatic device, the TDE Ex Series requires no explosion-proof enclosures or electrical connections—offering a key safety and cost advantage in Ex-rated areas. Key Features • Powered by compressed air • IP66 protection • ATEX / IECEx certified • Continuously rated • Very high sound output: up to 138 dB(A) • Low-frequency options: 660 / 377 / 307 Hz • Wall or pole mounting • Simple installation and maintenance • Corrosion-resistant build • For Group II (above ground) zones Certifications • II 2G Ex h IIB + H2 T6 Gb • II 2D Ex h IIIC T85°C Db • Zones 1, 2 (Gas) & 21, 22 (Dust) Applications • Oil & gas platforms (onshore/offshore) • Chemical & petrochemical plants • Marine & dock facilities • Refineries & tank farms • Dust-prone areas (e.g. grain, food)