I have two Odyssey Series II gauges, Circular with chrome bezel and blue colored read outs that you can see in sunlight.
Oil temperature, 0 to 400 F with a couple senders.
Cylinder Head Temperature, 50 to 750 F with at least 3 thermocouple connector wires. Each wire is 11 ft long.
Since I'm going to a water pumper I will part with them for $200.00 plus shipping. There's more than $300.00 worth here. I don't think I have the manual but it can be down loaded from dakotadigital.com. These gauges are accurate to about 4 degrees plus or minus. They are still in Dakota's catalog if you want to get more info.
My PayPal is. Bruce Williams. infoispower2@yahoo.com. PM me if you're interested.