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Pub. 988-0064-351
LST-3800
In-Dash Digital Sonar Gauge
Installation & Operation Instructions
The LST-3800 is a depth and temperature gauge that comes with a 200
kHz transducer, features deep and shallow alarms and has three main
page displays. It can show depth in Meters or Feet, temperature in Fahr-
enheit or Celsius and its display may be set to rotate between Tempera-
ture, Depth or Dual display pages. The unit fits in a standard 2-1/8" (54
mm) hole used by most marine equipment manufacturers.
The 3800 is designed to display water depth and surface water tempera-
ture, but you MUST have a transducer with built-in temp sensor to re-
ceive temperature information.
LST-3800 temperature gauge.
Mounting Preparations
When installed, the gauge's bezel will cover a circular area at least 2-1/2"
(64 mm) wide on the front of the dash. To mount the unit, make sure
there is at least 4-1/8" (105 mm) from the front of the dash to any ob-
struction behind the dash. The maximum usable dash thickness is 1-1/8"
(28.5 mm). Also, make certain there is room to route the unit's cables.
The following figure shows gauge dimensions.