Environmental Test Chambers Usages: Used to test various types of materials for their tolerances under condition of heat, cold, dry, humidity. Application: For all types of electronic products quality inspection , electric appliance, andcommunication, instrument, automobile, plastic, metal, food, chemical, building materials, medical and aerospace industries products. Features： 1.Used in various rang of temperature and humidity environment,can meet different testing requirements。Adopting BTHC uniqe control method, with safety and accurate temperature and humidity environment. 2.Equipped with high precision digital display temperature and humidity controller 3.Refrigeration circuit performation controlled by temperature setting value automatically,capable of starting up condenser under high temperature,direct cooling. 4.With wide view glass window，easy to observe the testing process。 5.Protection system: Electrical breaker,overheat protection,phase absence protection，water shortage alarm. Model ZXGDH-4 ZXGDH-8 ZXGDH-12 ZXGDH-16 ZXGDH-24 ZXGDH-32 ZXGDH-40 Capacity 4CBM 8CBM 12CBM 16CBM 24CBM 32CBM 40CBM Temperature control method: BTHC Heater: Ni-Chrome Alloy heaters Humidifer :Shallow slot type Blower fan: Centrifugal fan Temperature and humidity sensor: PT110 dry & wet ball sensor