| Model | GTH-080ST-SP | GTH-122ST-SP | 
        
            | Internal Dim. W x H x D (cm)
 | 40x50x40 | 45x60x45 | 
        
            | External Dim. W x H x D (cm)
 | 75x95x57 | 80x102x62 | 
        
            | * Temp. & Humi. Range | 0 ℃   ~   100 ℃ 30%  ~  95% RH | 
        
            | 
 | Temp. & Humi. Constancy | ±0.3℃    ;    ±3%RH | 
        
            | Indication Resolution | 0.1℃    ;    0.1%RH | 
        
            | 
 | Exterior | Stainless Steel Plate + Powder coated | 
        
            | Interior | SUS#304 Stainless Steel Plate | 
        
            | Insulation | PU & Fiberglass Wool | 
        
            | Controller | Digital Electronic Indictors + S.S.R. With PID Automatic Calculation Capability | 
        
            | Power Source [K.W.] | AC 1ψ  220V  60/50Hz |