I have the Sutra Mini and it is fantastic. ~$200
Small, Discrete, LCD screen with full temp control, and can haul.
Only downsides are the battery life, which would only be bad if you plan on hauling on it all day otherwise it can last a few days if you are using it only 1 or 2 times a day. Camber size could be a bit bigger but its not that big of a deal.
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