Temperature And Humidity Test Chamber Features: Temperature ranges from -60? to 150?; (can be customized); Humidity ranges from 20% to 98%; Various test chamber sizes choosable; Tests of different temp and humidity can be set in one go; for example: Temp 50? & humidity 70% for 1 hour and auto do temp 60 ? & humidity 80% for next hour; With observation window; Control method: Touch screen control; Imported components from UAS, France, Japan, Korea and etc. Temperature range -20?150?,-40?150?, -60?150? (can be customized) Humidity range 20%?98% Volume 80L 150L 225L 408L 612L Test Chamber Size WxHxD(cm) 40x50x40 50x60x50 50x75x60 60x85x80 80x90x85 Whole Machine Size WxHxD(cm) 95x136x94 100X146X104 100x161X117 110x171x137 130x181x137 Temperature Rate increasing and decresing Room temperature?150?; within 60 minutes Room temperature?-20?; within 60 minutes Power switch Air-break switch Power supply Single Phase 220V 50/60HZ or Three Phase 380V 50/60HZ. It depends on machine specification.