Indlab equipment corporation supplies upright thermal shock chamber designed mainly for small lots of production screening of semiconductor components or r&d; programs for devices and assemblies. The indlab thermal shock chamber is a truly cost-effective solution to thermal shock/temperature cycling and environmental stress screening requirements. The indlab thermal shock chamber comprises twin chambers: i] hot zone at the top for temperature range ambient to 225&176;c; and ii] cold zone below the hot zone for temperature range ambient to -75&176;c. The basket containing the thermal shock chamber is transferred vertically between the high temperature chamber and the ultra low temperature chamber, automatically with the help of pneumatic cylinder mechanism. The indlab thermal shock chamber comes with fully automated programming facility of temperature in the hot and cold zones, product transfer timing, cycle count and shut-down functions. This unique mechanism of the indlab thermal shock chamber offers complete flexibility of temperature profiles for preheat and precool function capability and programmed defrost of the cold -zone. Timing functions, cycling count and shutdown functions are programmed and displayed automatically on the control panel of the thermal shock chamber. The entire system of the thermal shock chamber is mounted on smooth moving caster wheels with anti-skid brakes.