A sheathed miniature heater, precision engineered to specifically fit Better Equipped Premium metal block calorimeters (codes 0596, 0597, 0598, 0599). Electrical connection is via 300mm leads with heat resisting insulation terminating in 4mm sockets. 12V, 50W. Needs a power pack capable of delivering at least 4A of current at 12V. 12mm diameter x 100mm length.