High frequency device for fast data transfers

Light and compact

Smaller and lighter build designed for size- and weight-sensitive applications

Directivity pattern

The beam pattern is optimal for transmissions in horizontal channels



Operating Depth
200 m
Stainless Steel
2000 m
Operating Range
3500 m
Frequency Band
18 - 34 kHz
Transducer Beam Pattern
horizontally omnidirectional


Acoustic Connection
up to 13.9 kbit/s
Bit Error Rate
less than 10-¹⁰
Internal Data Buffer
1 MB, configurable
Host Interface [1]
Ethernet or RS-232
Interface Connector
1 connector


Power Consumption [2]
Stand-by Mode
2.5 mW
Listen Mode
5 - 285 mW
Receive Mode
0.8 W
Transmit Mode
2.8 W, 1000 m range
8 W, 2000 m range
35 W, 3500 m range
55 W, max. available
Power Supply [3]
 24 VDC (12 VDC)
Rechargeable battery 3.350 Ah


Housing Options
Aluminium Alloy
Stainless Steel
Dimensions [4]
Ø 63x235 mm
Total length
310 mm
Weight dry/wet

Delrin 1265/480 g
Stainless Steel 
2910/2120 g

[1] One RS-232 Interface can be replaced with a RS-422 interface. Contact EvoLogics for more information!
[2] Power consumption for RS-232 interface. Add 500 mW if an Ethernet interface is installed. Add 300 mW if the Wake-Up Module is installed.
      User-configurable Listen Mode is only available with a Wake-Up module installed. Power consumption in Listen Mode depends on Listen Mode settings. 
[3] 300 VDC available for 42/65 models. Contact EvoLogics for more information on power supply options! 
[4] Dimensions of a Delrin housing, other builds are slightly larger. Dimensions vary depending on housing type and installed options.
      Contact EvoLogics for more information on device dimensions and weights, request a drawing if necessary. 
[5] The Wake Up Module is only compatible with RS-232 interface! It is not compatible with Ethernet or RS-422.
       2-interface Wake Up Module version reacts to incoming data on two serial interfaces.
[6] The Power Switch is only compatible with RS-232 interface! It is not compatible with Ethernet or RS-422.

S2C M 18/34 Directivity Pattern

Modules and Options

Wake-Up Module [5]
Power switch [6]

Advanced Timekeeping
✓ (only OEM version)
SDM Version
Acoustic Release Device
Floatation Collar
Pressure Sensor
Cable-Mounted Transducer

 S2C R 18/34 -  DOWNLOADS

The online version prevails in case of any discrepancy between the .pdf datasheet and online specifications.