second monitor for laptop with for a ship with 12 volt-currency

[Red Harlekin]

My laptop is an IBM T42 with Window XP.
I use on my ship a navigation-programm on this laptop, inside in the cabin.
I wish for the cockpit a second monitor, where i see the same display as on the mainboard, so that I can work together with a keyboard also outside, in the Cockpit.
My laptop works on 12 Volt, and so needs also the second monitor to work. Where can I get this kind of second monitor?

Thanks for an answer.

Erwin

[rthompson80819]

Google "12 volt dc monitor" and take your pick, there are quite a few for sale from many sources.

[Red Harlekin]

Thank you for the reply, it seems now, i will find the right thing in the section "monitors for cars", because the size should not be bigger den 12".