Product Features 
Sapce-saving design / useful safety features / highly rewliable operation 
SUS 304 stainless steel exterior and interior 
Full thermal break around doorframe
Rounded corners for easy cleaning
Rotating door latch is easy and secure
One 50mm diameter cable port on left, with flexible silicone plug
Dual-layer insulation of glass wool and rigid polyurethame foam for thermal intergrity
Big chamber performance / Fast temperature changes

Testing Standards and Methods 
GB/T10592-2008 Specification for low/high temperature test chambers
GB/T10586-2006 Specifications for damp heat chambers
GB/T 10589-2008 Specifications for low temperature test chambers
GB/T 2423.1-2001 Environmental testing for electric and electronic and electronic products--Part 2:Test methods--Tests A:Cold
GB/T 2423.2-2001 Environmental testing for electric and electronic products--Part 2:Test methods--Tests B:Dry heat
GB/T 2423.4-2008 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic ( 12h+12h cycle)
GB/T 2423.22-2002 Environmental testing for electric and electronic products--Part 2:Test methods Test N:Change of temperature
GB/T 2423.34-2005 Environmental testing for electric and electronic products--Part 2: Test methods--Test Z/AD:Composite temeperature/humidity cyclic test
GJB105.3-86 High Temperature Test
GJB105.4-86 Low Temperature Test
GJB105.9-86 Temperature-humidity Test

Specifications of Programmable Temperature and Humidity Chambers
Secifications: (at +20°C room temperature or +25°C water temperature without loading)
Models		at-R Series					at-L Series					at-S Series
		150R	225R	408R	800R	1000R	150L	225L	408L	800L	1000L	225S	408S	800S	1000S
Interior Dimensions (mm)	W	600	700	700	1000	1000	600	700	700	1000	1000	700	700	1000	1000
	H	600	700	750	1000	1000	600	700	750	1000	1000	700	750	1000	1000
	D	460	480	800	800	1000	460	480	800	800	1000	480	800	800	1000
Exterior Dimensions (mm)	W	880	980	980	1280	1280	880	980	980	1280	1280	980	980	1280	1280
	H	1730	1890	1940	2160	2160	1730	1890	1940	2160	2160	1890	1940	2160	2160
	D	1400	1460	1740	1750	1950	1400	1460	1740	1750	1950	1460	1740	1750	1950
Working Volume (L)		165	235	420	800	1000	165	235	420	800	1000	235	420	800	1000
Weight (KG)		240	280	400	500	580	250	300	420	530	600	330	450	550	650
Power (KW)		5.8	6.0	7.5	12.8	12.8	7.5	7.5	8.5	14.5	14.5	9.5	10.6	18.5	18.5
Power Supply		AC 380 V ± 10% 50Hz, 3 Phase 4 Wires Including Ground Wire
Temperature
Temperature Range (℃)		(-20～+150)					(-40～+150)					(-70～+150)
Heat up Time		(-20°C～+100°C,within 35 Min)					(-40°C～+100°C, within 45 Min)					(-70°C～+100°C,within 60 Min)
Cool Down Time		( +20°C～-20°C, within 45 Min)					(+20°C～-40°C, within 60 Min)					(+20°C～-70°C,within 80 Min)
Ambient Temperature (+℃)		5～35
Temperature Constancy (±℃)		0.5
Temperature Uniformity (±℃)		2.0
Humidity
Humidity Range (R.H)		20%～98%
Humidity Constancy (±R.H)		2.50%
Humidity Uniformity (±R.H)		3.00%			5.00%		3.00%			5.00%		3.00%		5.00%
Material
Interior		SUS304 Stainless Steel
Exterior		Electrostatic Spray Coating Finish Stainless Steelor Stainless Steel (SUS304)
Insulation		Rigid Polyurethane Foam and Glass Wool
Systems
Heaters		Iron-chrome Wire Heater
Refregiration		Air Cooled (or Optional Water Cooled)
		Single-stage Refrigeration System Hermetic Compressor HFC Free Refrigerant (HFC-404 / HFC-23)										Cascade Stage Refregiration System Hermetic Compressor HFC Free Refrigerant (HFC-404 / HFC-23)
Control		Balanced AdjustableTemperature/Humidity System
Controller		7-Inch LCD Touch-screen Panel (Chinese, English or Russian Language Modes) Operation Modes: Program or Setting Memory Capacity: 120 Programs, 1200 Steps Cycles: all repeat 999 cycles, part repeat 99 cycles
Safety and Configurations
Safety Devices (Standard)		No Fuse Breaker Compressor over Pressure/Heat/Current/Temperature Protection Fan Overload Protection Safety Fuse Dry Combustion Protector Water Shortage Protection
Standard Configurations		1 x Heatproof Oberservation Window 1 x Cable Port (portΦ50mm) 2 x Shelves 1 x Chamberlamp 2 - meter Long Power Cord
Options		Cable Ports (portΦ100mm) More Shelves RO Water Purifier Dehumidifier (for Lower RH) Temperature & Humidity Recorder Defroseting Circuit Liquid CO2 or Liquid N2 Injection Devices (for faster cooling)