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RadioSounder S1F – Wireless Alarm Sounder

The RadioSounder S1F from Mimes provides wireless activation of high-output alarm sounders for industrial safety and signalling applications. By combining a powerful 115 dB(A) sounder with secure ISA100 wireless communication, the RadioSounder S1F enables reliable alarm distribution without the need for extensive field cabling.

Designed for demanding industrial, energy, marine, and offshore environments, the RadioSounder S1F supports ISA100 wireless communication with optional PROFIsafe functionality for SIL1/SIL2 safety communication according to IEC 61508:2010. This makes the unit suitable for Fire & Gas, process safety, and critical alarm applications where robust and dependable signalling is required.

The integrated sounder offers 64 selectable alarm tones and Class-D amplification, providing flexible and efficient audible warning for a wide range of site requirements. Wireless communication is protected by 128-bit AES encryption, supporting secure operation in modern industrial networks.

The RadioSounder S1F is certified for use in ATEX/IECEx Zone 1, 2, 21, and 22 hazardous areas. It is housed in a robust IP66 316 stainless steel Ex d enclosure and is designed for operation in temperatures from –20 °C to +70 °C.

  • Universal usage globally with the use of ISA100 industrial communication
  • High‑output 115 dB(A) sounder with 64 selectable tones
  • 64 selectable alarm tones
  • Bluetooth or over the air configuration
  • Encrypted wireless communication
  • Robust Exd IP66/67 GRP enclosure
  • ISA100 wireless communication
  • Dublicate cable terminations (in & out for daisy-chain installations)
  • Covers all applications from industry, windfarms to oil fields
  • Ex-approved omnidirectional antenna
Approvals
IEC
IECEx ULD 16.0017X
IEC 60079 - 0 : 2011
IEC 60079 - 1 : 2024
IEC 60079 - 31 : 2013
TR-CU Ex EAc certificate: Ru C-GB
AA71.B.00109
SIL1 compliant to IEC 61508 (2010)
SIL2 compliant to IEC 61508 (2010)
ATEX
ATEX DEMKO 16 ATEX 1466X
EN 60079 - 0 : 2012 + A11 : 2013
EN 60079 - 1 : 2014
EN 60079 - 31 : 2014
Coding
Sounder:
IECEx / ATEX
II 2G Ex d IIC T4 Ta. -60°C to +50°C
II 2G Ex d IIC T3 Ta. -60°C to +70°C
II 2G Ex d IIB T6 Ta. -60°C to +50°C
II 2G Ex d IIB T5 Ta. -60°C to +65°C
II 2G Ex d IIB T4 Ta. -60°C to +70°C
Antenna:
Ex II GD
Ex eb IIC T6 Gb
Ex tb IIIC T85°C Db
T. amb -20°C to +69°C
Version Part Code
Product type RS-S1F Sounder 115 dB(A)
Enclosure E01
E02
E03
GRP
Stainless Steel
Aluminium
Safety I
S
Standard/Industrial
SIL2
Wireless Protocol W1 ISA100 2.4GHz
Equipment Tag 1
2
Label tag
SS Equipment tag
Plug Material B
N
S
Brass
Nickel Plated
Stainless Steel
Entries/ Glands C09 1xM20
Enclosure colour R
C
Red
Custom
Colour R
C
Red
Custom
Antenna A01
A04
Ant-1 Type 2 bracket 90mm (Left angle, Ex e)
Ant 1 Extended bracket Type300-245 (Ex e)
Product version P1 ATEX/IECEx Ex d
Standard versions RS-S1F-GRP-I-W1
RS-S1F-GRP-S-W1
RS-S1F-E01-I-W1-1-B-C09-R-A01-P1
RS-S1F-E01-S-W1-1-B-C09-R-A01-P1
Maximum output 115dB(A) @ 1 m +/- 3dB [106dB(A) @ 10ft/3m +/- 3dB]
Nominal output 110dB(A) @ 1m +/- 3dB [101dB(A) @ 10ft/3m] +/- 3dB
No. of tones 64 (UKOOA / PFEER compliant)
No. of stages 4
Volume control Full range
Effective range 125m/410ft @ 1KHz
Voltage DC 24Vdc (20-30Vdc),
In-rush 815mA within 4ms @ 24Vdc
Ingress protection IP66
Enclosure material GRP
Enclosure colour Red
Lens guard 316 Stainless Steel
Colour Red (RAL3000)
Enclosure finish Natural – can be painted in alternative colours
Cable entries 1 x M20x1.5mm
Terminals 0.5 – 2.5mm² 20-14 AWG
Enclosure volume <2 litres
Installation temp -20°C to +70°C [-0°F to +158°F]
Operating temp -20°C to +70°C [-0°F to +158°F]
Operating temp -20 to +70°C [-0° to +158°F]
Relative humidity 95%
Grounding stud M4
Weight 3,9 kg
Wireless interface ISA100
ISA100.11a ISM 2475 - 2400 MHz
Encryption 128-Bit AES
Network modes STAR/MESH/STARMESH
Latency 10 msec to 1 minute
Line of sight RF range Ex500m and Non Ex 2000m
Antenna Omnidirectional antenna with 2.4 GHz band
Configuration and software Bluetooth v4.2 (pending) or serial port
Communication ISA100, PROFIsafe, HART
External communication Modbus, OPC UA, PROFINET/Safe
Weight 3,9 kg