GPSMAP 188/188C Sounder chartplotting receiver owner’s manual(GPSMAP 188C shown). This manual introduces the features and characteristics of the GPSMAP 188/188C Sounder chartplotting receiver.
This manual serves as the primary guide for the Garmin GPSMAP 188/188C Sounder chartplotting receiver. It details the initial setup process, including how to initialize the receiver to acquire satellite data and establish a location. The guide explains the use of the device's interface keys and rocker for navigating through various pages and menus.
| Waterproof Rating | IEC Standard 60529 IPX7 |
|---|---|
| Immersion Limit | 1 meter of water for 30 minutes |
Press and hold the POWER key until the power tone sounds, and then release the POWER key.
Press and hold the POWER key for approximately 2 seconds until the screen is blank, then release the key.
Prolonged exposure to temperature extremes can cause permanent damage to the unit.