| Model No | BU-410 | BU-410-W-H | BU-420 | BU-420-W-H |
| Temp. Range | Ambient+5℃ ~ 70℃ | Ambient+5℃ ~ 100℃ | Ambient+5℃ ~ 70℃ | Ambient+5℃ ~ 100℃ |
| Temp. Accuracy | ±0.1℃ (LED Display)/ Uniform ±1~1.5℃ | |||
| Temp. Control | Micro-computer PID temperature controller | |||
| Temp.Display | LED Display | |||
| Heater | 350W | 1200W | 700W | 1500W |
| Volume (L) | 10 | 20 | ||
| Inside Dimension(WxDxH) | 295 x 235 x 150 mm | 495 x 295 x 150 mm | ||
| Outside Dimension(WxDxH) | 410 x 280 x 215 mm(No lid) | 610 x 340 x 215 mm(No lid) | ||
| Weight (Kg) | 8 | 12 | ||