Digital repeaters of 38RShM series provide indication of the vessel's heading received from the gyrocompass. In addition to LED display with a dimmer repeaters 38-RShM and 38-RShM1 have a separate two-colour LED bar graph rate of turn indicator. Repeaters are placed in service compartments of sea and river vessels.
| Technical data | |
| Accuracy of heading indication: | |
| - repeaters 38-RShM and 38-RShM2, ° | 0,1 |
| - repeaters 38-RShM1 and 38-RShM3, ° | 0,01 |
| Interface | RS232/ RS422 |
| Supply voltage, V DC | 19,2 - 31,2 |
| Power consumption, W | 9 |
| MTBF, hours | 12000 |
| Dimensions, mm | 245 x 180 x 159 |
| Weight, kg | 3,2 |
| Protection level | IP22 |
| Operating conditions: | |
| Temperature range, °C | -15 to +55 |
| Relative humidity at t = 40°C, % | 98 |