Uniden SM81 Speaker Microphone [SM81]SM81 Speaker Microphone Uniden's SM81 Marine VHF Speaker Microphone replaces Uniden's HHSPM. WARNING: This product can expose you to chemicals including LEAD which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov. Specifications: Type: Microphones Box Dimensions: 2"H x 4"W x 4"L WT: 0. 32 lbs Quick Guide (pdf)

for 1-1/8" washers

Cable: Not included use our VHF/AIS cables and two DA645 connectors

12" x 18" Standard Mount Trim Tab Kit without Switch Kit- 12V

Black Plastic

Switches a single battery to a single load group

1-1/4" x 15/16"

Higher rating than popular 8500 series switches

GPSMAP® 400 Series

The conventional way of viewing NMEA 2000 information is with a display on the vessel that is directly connected to an NMEA 2000 network

Box Dimensions: 2"H x 5"W x 5"L WT: 32

Displays frequency from 40 to 90 Hertz

24v lighting option is available