The GNExS2H and STExS2H generate a maximum sound output level of 127dB(A) at 1 meter, offering a unique solution for harsh and hazardous environments with high ambient noise levels, or in quieter environments, generating an effective audible warning over larger areas. The other main variants in the GNEx and STEx families are the GNExS1F and STExS1F short flare horn versions producing up to 115dB(A) SPL with a maximum current consumption of only 221mA and the GNExS1R and STExS1R compact omnidirectional radial horn versions with a SPL of up to 113dB(A). The GNExS2F and STExS2F long flare versions now feature two user-selectable power modes, enabling a choice between the standard 120dB(A) SPL or the high output 123dB(A) SPL. All versions feature 64 alarm tones and four alarm stages/channels that can be remotely activated via common positive or negative switching. New cabling configurations permit both reverse and standard polarity line monitoring across multiple alarm stages. All versions are now tropicalized, enabling them to be installed in up to 99 percent humidity, and all mounting brackets are now A4 316 stainless steel as standard. The GNEx range is approved to IECEx, ATEX, Ex EAC and INMETRO for all Zone 1 applications and the STEx range is IECEx, ATEX, Ex EAC, INMETRO and DNV approved for Zone 1, 2, 21 and 22 applications.
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