Newly Arrived – 2 Tenney Benchtop Temperature Chambers Model TJR These Tenney Chambers are highly sought after – and by purchasing from LR Environmental you can save a significant amount of money with confidence in quality Refurbished Equipment. I.D. 16″ X 11″ X 12″, -70 to +170- Deg. C Temperature Range. Inquire about controller options. Once refurbished, these Tenney Temperature Chambers will perform for years.