Explosion-proof alarm sounder SD150

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SD150 Series – Explosion-Proof Sounder for Hazardous Areas The SD150 is a high-output audible warning device designed to ensure fast and unmistakable alerts in hazardous industrial environments. With its powerful 113 dB(A) output, it delivers clear, effective alarm signals in noisy or wide-area spaces where safety and rapid response are critical. Engineered to withstand harsh, corrosive, or offshore conditions, the SD150 helps reduce risks and downtime by ensuring personnel are quickly alerted to emergencies, equipment faults, or process changes. A stainless steel version (SD125) is also available for environments requiring enhanced protection. Key Features • Explosion-proof sounder (horn) • Up to 113 dB(A) at 1 metre • 59 pre-recorded tones, 3 remotely selectable • SIL2 compliant • Rugged UV-resistant GRP housing • Stainless steel 316L mounting bracket • IP66/67 • Body colour: red (standard) or yellow, black, blue, green, grey, orange Certifications • ATEX: – II 2 GD Ex db IIC T4 ~ T6 Gb – Ex tb IIIC T135°C ~T85°C Db • IECEx approved • Zones 1, 2, 21 & 22 Benefits • Immediate, high-volume alerting for safety-critical zones • Suitable for corrosive and marine environments • Flexible tone and mounting options Applications • Oil, gas and petrochemical (onshore/offshore) • Chemical and pharmaceutical industries • Food and beverage processing • Refineries, marine & storage facilities • Areas at high risk of explosion