| Compared Products | Simrad IS15 Rudder marine instrument | Simrad IS20 Rudder Marine Instrument |
|---|
 |  |  |
AutoPilot/AutoSteering | | |
| Rudder Angle Scale | True | |
Display | | |
| Display Resolution | | 130 x 104 |
| Display Type | | Backlit LCD 4,5 inch matrix display |
Information | | |
| ShowApsisNewsletterForm | True | True |
Networking/Connectors | | |
| NMEA 0183 Interface | IN or OUT | |
Power | | |
| Power Consumption | 75-140 mA | |
| Power Consumption Lights Off | 75 | |
| Power Consumption Lights On | 140 | |
| Power Supply | 10.8 - 15.6V | 12 V, 0.11A (1.3 W) |
Technical/Environmental | | |
| Mounting | F | |
| Operating Temperature | 0°C to 55°C (+32F to +130F) | 0 to +55 °C (+32 to +130 °F) |
| Operating Temperature Stored | -30°C to 80°C (-22F to 176F) | –30 to +70 °C (–22 to +158 °F) |
| Depth | 21 | 44 |
| Height | 110 | 114 |
| Width | 110 | 114 |
| Weight | 0.21 | 0.3 |
Other | | |
| Type Of Equipment | Instrument | |
| Environmental Rating | IP56 from front, IP43 from rear | |
| Number Of Instruments | 2 | |
| Lighting | True | |
| Digital Character Size | 10 | |
| Heading Lock/Course To Steer | True | |
| Digital Heading Display | True | |
| Character Segments | 7 | |
| Compass Safe Distance | | 300 |