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Highly efficient bi-directional temperature gradient system for investigating responses to temperature shifts of seeds, small plants, insects, micro-organisms or any small component or material. The design is based on the fact that a temperature gradient results if one edge of a square aluminium plate is heated and the opposite edge is cooled.

The gradient runs in one direction for part of the 24-hour cycle and can then be automatically switched to run at a right angle to its original direction for the remainder of the cycle, to provide all possible combinations of minimum and maximum temperatures.

• Temperature range: +5 to 30ºC (cold edges)
• Temperature range: ambient +5 to 45ºC (hot edges)
• Perspex grid divides working area into 196 mini-incubators
• Multi-channel Squirrel data logger (included as standard) for recording time and temperature
• Over-temperature protection is provided on each edge by fixed temperature cut-outs