E2S produces a diverse selection of alarm horns or sounders suitable for various applications. The effectiveness of any audible signaling device relies on factors such as the size and/or distance of the area to be covered, background noise, and the pattern and frequency of the tone.
The loudness of a sound diminishes as the listener moves farther from the sound source, primarily due to "divergence." The intensity decreases because the energy spreads across a larger area, following an inverse square law. This means that for each doubling of the distance from the source, the sound intensity decreases by 6dB. For example, if an alarm is rated at 106dBA, it will reach twice the distance compared to a sounder rated at 100dB(A). If a sounder is initially rated at 100dB(A) at 1 meter, it would be 94dB(A) at 2 meters, 88dB(A) at 4 meters, and so forth.
Model # | UL | ULC (fire listed) | cUL (safety) | FM | ATEX | IECEx | TR CU Ex EAC | NMETRO | VdS | Class I Div 1 | Class II Div 1 | Class I Div 2 | Class II Div 2 | Zone 0 | Zone 1 | Zone 2 | Zone 20 | Zone 21 | Zone 22 | |||||||||||||||||
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Approval | Zone / Division | |||||||||||||||||||||||||||||||||||
D1xC1X05R Xenon | • | • | • | • | • | • | • | • | • | • | • | • | ||||||||||||||||||||||||
D1xC1X10R Xenon | • | • | • | • | • | • | • | |||||||||||||||||||||||||||||
D2xC1X05 D2xC1X10 Xenon | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||||||||
D2xC2LD2 LED | • | • | • | • | • | • | • | • | • | |||||||||||||||||||||||||||
E2xC1X05R Xenon | • | • | • | • | • | • | • | • | ||||||||||||||||||||||||||||
IS-mC1 L.E.D. | • | • | • | • | • | • | ||||||||||||||||||||||||||||||
BExCS110-05 | • | • | • | • | • | • | • | • | ||||||||||||||||||||||||||||
BExCS110-L2 L.E.D. | • | • | • | • | • | • | • | • | ||||||||||||||||||||||||||||
STExC1X05R Xenon | • | • | • | • | • | • |