D A Lebuis

Dual channel temperature recorder.

A dual channel temperature recorder is described which can measure temperatures linearly over a range of 0 to 80 C. The sensitivity can be adjusted so that any temperature span, as small as 3 degrees , will cover recorder full scale, and temperatures can be read to 0.1 degrees . The recorder provides two independent, permanent records of temperature variations which can be related directly to the time of day.