Laramie, Wyo.-based In-Situ Inc. has added BaroTROLL, a new low-cost barometric smart-probe to the TROLL product line. This device complements the non-gauged (absolute) versions of the current In-Situ TROLL product line by allowing up-hole placement of an inexpensive barometric logger. Ambient barometric data compensation is easily achieved through a new one-step software enhancement in the included Win-Situ software.