We have this Thermotron Temperature Humidity Temperature Chamber Model #SM-16C, -70 to +170 Deg. C, 20% to 95% Humidity, 30″ X 30″ X 30″ Interior. This unit will have a Watlow F-4T Touchscreen Programmer, Repainted to Look Like New, Warranteed, have a custom users manual, it is Air Cooled… A Great Unit That Will Save You Money!! Get A Quote Now. Need Custom Alterations? We can provide that also.