alarm

board

button

cargo

case

center

console

control

device

electric

electrical

electrician

electricity

emergency

energy

engine

equipment

factory

gage

gauge

general

green

indications

industrial

industry

instrument

light

machine

marine

meter

monitor

off

panel

power

ready

reset

room

running

sea

ship

start

station

stop

switch

switchboard

system

technical

technology

test

vessel