Originally Posted by miktek
Hi there, after a brief look there is quite a choice out there. I'm just looking for something simple that does the job for speed and depth (either 1 unit or 2 separate devices). Got good dashboard space to mount on the SR4.
Is there a particular brand to either avoid or go for. Thanks again
GPS is the way to go for speed.
For depth you will need a transducer, usually transom mounted.
So by the time you've done both of the above, you might as well fit a small chart plotter/sounder combo. This will give everything you need & the effort, work, cost will be similar, if not cheaper than fitting simple gauges. Units from Garmin/Lowrance/Standard Horizon/Raymarine will all fit the bill.