Sensor module for a tissue processor

A sensor module (38, fig 1) for a tissue processor (20, fig 1) comprises a thermal sensor 66 for measuring a temperature of a container (30, fig 1) of the tissue processor, and has a position sensor for detecting a working position of the container. Preferably, the position sensor includes a first switch element 50, which has a contact member in which the thermal sensor is disposed. A second switch element 48 may be provided, which has a switch operating button 76 and a pivotably mounted switch arm 72 coupled with the button, which has a roller 74 at one end for engaging a surface of the first switch element. When the container is in its working position it presses against the first switch containing the thermal sensor. A plurality of containers (30, 32, 34, fig 1) and sensor modules (38, 40, 42, fig 1) may be provided.