Versatile Dry Block Heaters are ideal for applications that require temperature stability. All units hold 4 optional interchangeable modular blocks with over 40 choices. Blocks are easy to use, no tools required. Close tube-to-block contact enables maximum heat retention, resulting in efficient heating. Digital models offer exceptional temperature uniformity and stability for repeatable results, while non-digital models are an economical choice.
| Part Number | Model | Control | Temperature Range | Stability |
| OH-30392087 | HB4DG | Digital | Ambient: + 5°C - 120°C | ± 1°C |
| OH-30392066 | HB4AL | Analog | High: 75°C - 150°C / Low Ambient: + 5°C - 100°C | ± 2°C |
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