| Model | HHS-256 | HHS-506 | HHS-756 |
| Chamber Volume, L | 256 | 506 | 756 |
| Interior Chamber Construction | Stainless steel |
| Exterior Chamber Construction | Coated cold rolled steel |
| Access Port Diameter, mm | 35 |
| Weight, kg | 175 | 225 | 280 |
| Interior Dims, w x d x h, mm | 650 x 570 x 700 | 740 x 570 x 1200 | 1100 x 570 x 1200 |
| Exterior Dims, w x d x h, mm | 835 x 890 x 1190 | 930 x 890 x 1690 | 1290 x 890 x 1690 |
| Shelves Dims, mm | 597 x 531 | 687 x 531 | 1048 x 531 |
| Shelves Quantity Standard/Max | 2/16 | 2/31 | 2/31 |
| Max. Load Per Shelf, kg | 20 | 20 | 20 |
| Shelf Structure | Slide rail, adjustable |
| Voltage/Frequency, V/Hz | 220-240~50/60 | 220-240~50/60 | 220-240~50/60 |
| Power, W | 750 | 1100 | 1760 |
| Day Consumption at 25°C & 40% RH, kW·h | 4.6 | 5.4 | 5.6 |
| Controller | Microprocessor |
| Display | 10″ smart LCD screen |
| Temperature Set Range without Humidity without Light, °C | 5-70 |
| Temperature Set Range with Humidity without Light, °C | 5-70 |
| Temperature Set Range with Humidity with Light, °C | 15-60 |
| Temperature Control Precision, °C | ±0.1 |
| Temperature Uniformity at 25°C, °C | ±0.5 |
| Temperature Fluctuation at 25°C, °C | ±0.2 |
| Sensor | PT1000*2 |
| Rate of Temperature Rise, °C/min | 1 | 0.8 | 0.6 |
| 30 Seconds Recovery Time After Door Opening at 40°C, min | 3 | 3.8 | 5 |
| Humidity Setting Range, % RH | 10~90 |
| Humidity Setting Accuracy, % RH | 0.1 |
| Humidity Fluctuation at 25°C & 60% RH, % RH | ±1 |
| Daily Water Consumption, mL | 120 | 240 | 320 |
| Electromagnetic Lock (Password) | Optional |
| Printer | Optional |
| ICH Compliant Illumination for Photo-Stability Testing, lx | Optional 0~10000 |
| ICH Compliant Illumination for Photo-Stability Testing, W/m2 | Optional 0~1.1 |
| Remote Alarm Interface | Standard |
| RS485 | Standard |
| Water Level Alarm | Standard |
| Certification | CE |