Eaton’s FHF EV 21 and EV 24 electronic sounders are designed for harsh industrial environments, offering reliable signaling for both indoor and outdoor applications. Built with seawater-resistant aluminium and coated in durable plastic, these IP54-rated devices ensure long-term performance in demanding conditions.
Each unit integrates a power supply, microprocessor, amplifier, and loudspeaker in a compact design that supports easy installation and minimal maintenance. With a sound output of up to 105 dB(A), the EV series supports both AC and DC voltage and features 21 selectable signal tones - including emergency signals compliant with DIN 33404/3.
A built-in micro SD card provides over 80 pre-installed tones and allows users to upload custom WAV files, making the EV 21 and EV 24 highly configurable to suit diverse application needs.
Visit our hazardous and industrial signaling resource library to find all related documentation from company certificates, sounder tones, channel partners and much more.
Design features of our weatherproof multi-tone sounder for harsh environments
Standard materials for our corrosion-resistant industrial sounder