Yup the dashhawk can do the cat1b1 temperature which is the temperature of the catalytic converter or diesel particulate filter - I'm not sure which. And definitely can do the transmission temperature. I suspect there is an engine temperature sensor and engine oil pressure sensor but i do not have the codes to read those.
In my opinion the autoenginuity product is the best with ghe ability go actually test sensors and actuators. http://www.autoenginuity.com/
Some Sprinter owners have bought the Ultraguage, I bought one for my car but I couldn't seem to get all the same readings as my Dashhawk when I tested the Ultraguage on the CRD.
2008 WK "S" Limited bright metallic silver exterior, light graystone interior, 5 speed W5J400 transmission, June 18/2008 build, C213RE rear differential with 3.73 axle ratio, C200FE front differential with 3.73 axle ratio, 245/60R18 Goodyear Fortera tires (stock summer tires), NV245 transfer case, GT2056V turbo, 3.0L CRD (OM642.980)