Garmin Accessory GNX Keypad Marine Instrument. It features 4 buttons dedicated to preset configurations. Plus you can adjust the background lighting of all displays with the touch of a button. Specifications for Garmin GNX Keypad Marine Instrument: Manufacturer: Garmin Color: Black Weight: 3.4 oz Size: 2.32x4.53x0.59 in Operating Temperature: -15 - 70 Celsius Water Resistance Level: IPX-7 Features of Garmin GNX Keypad Marine Instrument Physical dimensions: 59 x 115 x 15 mm (2.32'' x 4.53'' x .59'') Weight: 95 g (3.4 oz) Water rating: IPX7 Temperature range: From 5degrees; to 158degrees;F (from -15degrees; to 70degrees;C) Voltage range: 9-16 V (from NMEA 2000) Power consumption: 0.2 W Mounting options: Flush NMEA 2000 certified: Yes NMEA 0183 compatible: No Auto-on: Yes Package Contents: Garmin GNX Keypad Marine Instrument Garmin 010-12255-00: Accessory GNX Keypad Marine Instrument