Jeio Tech | Floor Standing Temperature and Humidity Dual ChambersJeio Tech Floor Standing Temperature and Humidity Dual Chambers TH3 DG Environment Test Equipment for Simultaneous Temp and Humidity Testing The Jeio Tech Floor Standing Temperature and Humidity Dual Chambers, available from Alto Med Supply, is designed for laboratories and research facilities that need to perform two different environmental tests at the same time while saving valuable lab space. Built with dual independent chambers in a single unit,