Anyone fitted one of these..Silicon Marine Easy fit exhaust alarm

[Nauti Fox]

Just wondered as I want to fit a raw water alarm to lower and upper helm and these look ok.

http://www.siliconmarine.com/digital.html

http://www.siliconmarine.com/SM007.pdf

 

[Mr Googler]

NASA do a similar thing but the silicon marine display looks better especially as it combines dual engines on one display.

http://www.cactusnav.com/nasa-exhaust-temperature-monitor-p-12646.html?cPath=1117_1010