I have the DLS-55 with IQ4. No temp probe and not UL 1236. I was interested in this fact and spoke with an IOTA tech. He cited a UL spec that mentioned marine applications, but I don't recall the number.
__________________ My boat is my ark. It's my mobile treehouse and my floating fishing cabin. It's my retreat and my respite. Everyday I thank God I have a boat! -Al