A screw cap lidded container for laboratory use includes a container body defining a chamber, a tubular section of the container body that is connected at the rear to the chamber and has a container opening in the front and an external thread on the outer periphery of the tubular section. Also, an electrolytic titrant generator for use in the titration apparatus. The cooling passages are configured to route a cooling flow of fluid through the turbine bucket. The microcontroller generates an actual temperature value with reference to the temperatures measured by the first and second sensors, and generates a warning signal when the actual temperature value generated thereby is within a predetermined temperature range. The exit device may be operated by a remote switch attached to a control connection, which may be permanently closed to simulate a prior art electrically operated exit device for compatibility with third party control systems. For this purpose, the present invention is provided with a clutch judder detection device for.