The STExS1R is a high output, 115dB(A) alarm horn sounder with a omni-
directional horn. Low current consumption and high SPL in a robust IP66
corrosion proof 316L stainless steel enclosure ensures suitability for all Zone
1, 2, 21 & 22 applications.
Featuring 64 first stage/channel alarm so unds which can be selected via an internal switch. The
alarm tone frequencies for the first 2 stages are independently selectable. Each tone can be
remotely triggered e.g. via an external relay, to change to a second, third or fourth stage/channel
alarm sound.
Features:
- Robust corrosion proof 316L stainless steel enclosure
 
- High output, up to 115dB(A)
 
- 4 remotely selectable alarm stages/channels
 
- Positive or negative line stage/channel switching
 
- Choice of 64 alarm tone frequencies
 
- Automatic synchronisation on multi-sounder system
 
- Continuously rated
 
- Compact form factor
 
- Stainless steel fixings
 
- Ratchet adjustable 316 stainless steel bracket
 
- 316 Stainless steel stopping plugs included
 
- 3 x cable entries
 
- Duplicate cable terminations (in & out for daisy-chain installations)
 
- Available with custom tone configurations and frequencies
 
- DNV type approved IEC 60945 & DNVGL-CG-0339
 
Approvals:
- IECEx ULD 16.0017X
IEC 60079-0 : 2011
IEC 60079-1 : 2014
IEC 60079-31 : 2013 
- ATEX DEMKO 16 ATEX 1466X
EN 60079-0 : 2012 + A11 : 2013
EN 60079-1 : 2014
EN 60079-31 : 2014 
- TR-CU Ex EAC certificate: RU C-GB.AA71.B.00109
 
- SIL1 compliant to IEC 61508 (2010)
 
Coding
- Ex db IIC Gb T6 Ta -50°C to +65°C
 
- Ex db IIC Gb T5 Ta -50°C to +70°C
 
- Ex tb IIIC Db T85°C Ta -50°C to +70°C